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Home » Casseroles

Gluten-Free Sweet Potato Casserole (Dairy-Free)

Published: Nov 2, 2021 · Modified: Feb 2, 2023 by Felicia Lim · This post may contain affiliate links

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Pinterest image for sweet potato casserole
Pinterest image for sweet potato casserole

Whether you consider sweet potato casserole a dessert, a side dish, or both, it’s undeniably decadent, delicious, and everything you want in a single bite. A bed of creamy mashed sweet potatoes capped with a crunchy cinnamon pecan streusel topping, this is heaven in a casserole dish! You definitely want to make this for Thanksgiving. Gluten-free and dairy-free too, but if you don’t tell, no one would ever know!

Sweet potato casserole on a wooden board.

Can You Believe Thanksgiving is Almost Here?

I open my Google calendar and glance at the monthly view.

November.

(Woah, how did we get here so fast?!).

We’re barely into November, but to say I feel like a McFlurry of polarized emotions mixed with colorful M&Ms and Oreo bits is an understatement.

cornbread in a cast iron skillet
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It’s the special month – Juan’s birthday, my birthday, and then of course, the biggest holiday of the year: Thanksgiving.

I’m thrilled that we’ll be able to hug family and friends in person after a whole year of Zoom calls and Whatsapp voice messages. I’m ecstatic that we can actually sit down at the same table and catch up on all the IRL conversations we’ve missed out on this year. Hey, I’m even happy to stay up way later than my Cinderella bedtime because these gatherings are totally worth it.

What I’m terrified of is planning the dinner menu (yes, even with a food blog it still feels daunting).

Starters are usually easy – I’ve got my charcuterie board act all down pat, so I know I can whip that up easily. We can order in a Turkey (or someone else can make it), but what about a side dish?

I start making a mental list – crossing off each option that seems a little too difficult or time consuming, or that I’m not sure will work for everyone (even if they’re not on any special diet and can eat both gluten and dairy).

And then…the light bulb moment strikes me.

I’ll make sweet potato casserole, a no-fail option that can be easily made gluten-free and dairy-free and still taste like it should.

Hand holding a spoon in the casserole dish.

What is Sweet Potato Casserole?

The sweet potato casserole originated from the South of the United States, and it is basically a casserole that has a filling which includes cooked and mashed creamy sweet potatoes, milk, eggs, butter, vanilla and some kind of sweetener, and then topped with a crunch pecan streusel topping.

This classic side dish is almost always served at the holiday table during Thanksgiving day (and sometimes Christmas), and anytime you think of Thanksgiving, you can be assured that this casserole isn’t too far away.

Is Sweet Potato Casserole a Dessert or a Side Dish?

If it sounds decadent, it’s because it definitely is. Oozing with all the flavors associated with fall and thanksgiving, sweet potato casserole is a must-have holiday favorite at your Thanksgiving table.

The big question is: Is it a side dish or a dessert? That’s kind of debatable.

Due to the sweetness of the casserole and the ingredients used, which are very similar to the popular sweet potato pie dessert, a large number of people consider it a dessert (especially when it has a marshmallow topping), and serve it alongside pecan pie.

However, there are many who deem it a sweet side dish to be served alongside mains and other sides. There are also those who consider is a bit of both.

Whatever category you put it in, you definitely want to have it at your holiday dinner this Thanksgiving and holiday season.

Gluten-free sweet potato casserole on a wooden board.

A gluten-free and dairy-free version!

Since sweet potatoes are naturally sweet, and a typical recipe for this casserole tends to be loaded with ingredients such butter and milk, I wanted to create a gluten-free and dairy-free version that even Celiacs and those with gluten allergies and lactose intolerances can also enjoy. Because everyone should be able to join in and feast, right?

I used coconut oil in place of butter and almond milk instead of normal milk, but even with these two tweaks, you wouldn’t be able to tell that this recipe is both gluten-free and dairy-free! And hey, it tastes just like traditional sweet potato casserole, so if you don’t say anything, no one else at the table would know!

Why This Recipe Works:

  • Simple Ingredients: Let’s face it, planning Thanksgiving dinner can be stressful enough, so a recipe with simple ingredients is more than welcome. And this one’s exactly that. You can easily get these ingredients at any grocery store (but you might already have them at home).
  • Easy to Make: No complicated steps to make this perfect side dish. Just mixing, layering and baking. That’s it.
  • Totally Gluten-Free and Dairy-Free: This healthy sweet potato casserole recipe is totally gluten-free and dairy-free, so even those on a gluten-free diet or have gluten or lactose intolerances can indulge without any worries. And, the best part is, even those without intolerances will love it, no questions asked.
Spoon in the casserole dish.

Ingredients You’ll Need:

Here’s a visual overview of the ingredients required to make this gluten-free sweet potato casserole recipe.

(For exact measurements and quantities, please scroll down to the recipe card at the bottom of this post.)

Labeled ingredients for gluten-free sweet potato casserole on a marble board.

Ingredient Notes/ Substitutions:

  • Sugar: I used light brown sugar, but feel free to use normal white sugar, dark brown sugar, or even coconut sugar if you prefer. If you are diabetic or insulin-resistant, I recommend that you use Lakanto Monkfruit Sweetener (a 1:1 sugar substitute with zero glycemic index and does not raise blood sugar).
  • Coconut Oil: I prefer using refined coconut oil in my cooking and baking because it has a neutral taste, as opposed to extra virgin coconut oil (which has a strong coconut taste and smell). You can also use vegan butter in equal quantities. Alternatively, if you are not lactose-intolerant, feel free to use normal dairy butter in place of coconut oil.
  • Almond Milk: I like to use my 5-minute homemade almond milk for this recipe, but feel free to use other non-dairy milks such as cashew milk, rice milk, soy milk, or coconut milk. Alternatively, if you are not lactose-intolerant, go ahead of use normal dairy milk in equal quantities.
  • Eggs: In this case, eggs are essential as a binder for the sweet potato filling, to help give it more form and texture without making it dense, so I wouldn’t recommend leaving it out. 
  • Pecans: Pecans are traditionally used in the sweet potato casserole topping, but if you don’t like the taste of pecans, feel free to swap them out for walnuts, hazelnuts, or almonds as you prefer.
  • Cinnamon: The ground cinnamon really adds a beautiful fall flavor. Alternatively, if you prefer, you can also use pumpkin pie spice instead.

How to Make Sweet Potato Mash: 

To prepare the mashed sweet potatoes for this sweet potato casserole, you can either bake them in the oven or in the microwave. 

(1) In the oven: Prick the sweet potatoes with a fork all over, and then bake unpeeled sweet potatoes in the oven for 45 minutes at 425F until they are tender enough to be pierced easily with a fork. Slice sweet potatoes into half length-wise, and then scoop out the flesh and mash it with a fork or potato masher.

(2) In the microwave: Prick the sweet potatoes with a fork all over, and then cook the unpeeled sweet potatoes for approximately 5 minutes on high per medium potato (if you use 3 large sweet potatoes like I did, it’s approximately 15 minutes in the microwave). Slice sweet potatoes into half length-wise, and then scoop out the flesh and mash it with a fork or potato masher.

Baked sweet potatoes sliced into half lengthwise.

How to Make Gluten-Free Sweet Potato Casserole:

1. Preheat and Grease

Preheat the oven to 350F and grease a 9 x 13 inch casserole dish or baking dish. Arrange the rack to the middle position.

2. Prepare the Sweet Potato Filling

In a large mixing bowl, combine the mashed sweet potatoes, sugar, melted coconut oil, eggs, almond milk, and vanilla together. Mix very well until everything is evenly distributed (you can use a hand mixer or electric beater).

Whisking mashed sweet potatoes in a large bowl.

3. Prepare the Pecan Topping

In a medium bowl, combine the chopped pecans, melted coconut oil, ground cinnamon, and sugar. Mix well until pecans are evenly coated with the oil, sugar and cinnamon.

Hand mixing chopped pecans in a grey bowl.

4. Transfer Filling to Casserole Dish

Pour the sweet potato mixture into the previously greased casserole dish and spread it out evenly with a spatula.

Smoothing out sweet potato filling with a spatula in a white casserole dish.

5. Distribute Topping

Spoon the pecan crumble mixture evenly over the top of the sweet potato filling.

Gluten-free sweet potato casserole on a marble board.

6. Bake

Bake sweet potato casserole for 35 minutes, tenting with aluminium foil during the last 10 minutes to prevent the pecans from burning.

Hand holding a casserole dish with sweet potato casserole.

7. Serve and Enjoy!

You can serve this favorite Thanksgiving side hot or warm, or if you have leftover the next day, serve it cold! You can enjoy serve this delicious sweet potato casserole for breakfast on Christmas morning!

Top down view of a gluten-free sweet potato casserole on a wooden board.

Helpful Tips/Tricks:

  • Swap Pecans for Other Nuts: If you prefer, you can either swap out the pecans for other nuts, or top with marshmellows instead.
  • Prevent Topping from Burning: To prevent the pecan topping from burning, you can cover the casserole with aluminium foil (shiny side up) in the last 10 minutes of baking.
Hand holding a casserole dish.

Recipe FAQs:

Can This be Made in Advance?

Yes of course! You can prepare the mashed sweet potatoes 1 to 2 days in advance and assemble the ingredients on the day itself so it’s easier. If you prefer, you can also cook the casserole 1 to 2 days in advance, cover it with plastic wrap and store it in the fridge, and heat it up just before serving.

How Do I Store the Casserole?

If you have leftovers, cover the casserole dish in plastic wrap or aluminum foil and store in the refrigerator for up to 3 to 4 days.

Can I Freeze Sweet Potato Casserole?

Yes you can! Because it contains an egg, you have to cook the casserole first before freezing. To freeze, allow the cooked casserole to cool fully before transferring it to a freezer-safe container and freezing for up to 2 months. Let the casserole thaw completely overnight in the fridge before heating up or serving.

Half eaten gluten-free sweet potato casserole.

Other Thanksgiving Recipes:

  • Easy Skillet Cornbread (Gluten-Free, Dairy-Free)
  • Easy Cornbread Stuffing (Gluten-Free, Dairy-Free)
  • Jalapeño Cornbread (Gluten-Free, Dairy-Free)
  • Crispy Hasselback Potatoes (Gluten-Free, Vegan)
  • Crispy Air Fryer Brussels Sprouts (Gluten-Free, Vegan)
  • Shaved Brussels Sprouts with Lemon and Parmesan (Gluten-Free)
  • Soft Gluten-Free Dinner Rolls (Dairy-Free)
  • Easy Rosemary Cornbread (Gluten-Free, Dairy-Free)
  • Easy Cornbread Muffins (Gluten-Free, Dairy-Free)
  • French Toast Casserole (Gluten-Free, Dairy-Free)
  • 23 Last Minute Gluten-Free Thanksgiving Recipes

Favorite Recipes for the Holidays:

  • Homemade Candied Orange Peels (Gluten-Free, Vegan)
  • Easy Gluten-Free Breadcrumbs (Dairy-Free, Vegan)
  • Air Fryer Green Beans (Gluten-Free, Vegan)
  • Mini Pavlova Nests (Gluten-Free, Dairy-Free)

P.S. If you try this recipe, I’d love for you to leave a star rating below, and/or a review in the comment section further down the page. I always appreciate your feedback. Be sure to check out my entire Recipe Index for all the recipes on the blog. You can also follow me on Pinterest, Facebook or Instagram! Sign up for my Email List to get fresh recipes in your inbox each week!

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Sweet Potato Casserole (Gluten-Free, Dairy-Free)


★★★★★

5 from 3 reviews

  • Author: Felicia Lim
  • Total Time: 50 minutes
  • Yield: 12 servings 1x
  • Diet: Gluten Free
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Description

Whether you consider sweet potato casserole a dessert, a side dish, or both, it’s undeniably decadent, delicious, and everything you want in a single bite. A bed of creamy mashed sweet potatoes topped with a crunchy cinnamon pecan streusel topping, this is heaven in a casserole dish! You definitely want to make this for Thanksgiving. Gluten-free and dairy-free too, but if you don’t tell, no one would ever know!


Ingredients

Units Scale

For the Sweet Potato Filling:

  • 3 pounds sweet potatoes, cooked and mashed (approximately 4 cups mashed)
  • 1/2 cup light brown sugar
  • 1/2 cup coconut oil, melted
  • 1/2 cup almond milk
  • 2 large eggs, beaten
  • 1 teaspoon vanilla extract

Pecan Topping:

  • 1/4 cup coconut oil
  • 1 cup pecans, roughly chopped
  • 1 teaspoon ground cinnamon
  • 1/2 cup light brown sugar

Instructions

  1. Preheat: Preheat the oven to 350F and grease a 9 x 13 inch casserole dish. Arrange the rack to the middle position.
  2. Prepare the Sweet Potato Filling: In a large mixing bowl, combine the mashed sweet potatoes, sugar, melted coconut oil, eggs, almond milk, and vanilla together. Mix very well until everything is evenly distributed (you can use a hand whisk or electric beater).
  3. Prepare the Pecan Topping: In another bowl, combine the chopped pecans, melted coconut oil, ground cinnamon, and sugar. Mix well until pecans are evenly coated with the oil, sugar and cinnamon.
  4. Transfer Filling Mixture: Pour the sweet potato filling mixture into the previously greased casserole dish and spread it out evenly with a spatula.
  5. Distribute Topping: Spoon the pecan topping mixture evenly over the top of the sweet potato filling.
  6. Bake: Bake for 35 minutes, tenting with aluminium foil during the last 10 minutes to prevent the pecans from burning.

Notes

How to Cook Sweet Potatoes: To prepare the mashed sweet potatoes, you can either bake them in the oven or in the microwave.
(1) In the oven: Prick the sweet potatoes with a fork all over, and then bake unpeeled sweet potatoes in the oven for 45 minutes at 425F until they are tender enough to be pierced easily with a fork. Slice sweet potatoes into half lengthwise, scoop out the flesh and mash well.
(2) In the microwave: Prick the sweet potatoes with a fork all over, and then cooked the unpeeled sweet potatoes for approximately 5 minutes on high per medium sweet potato. (If you use 3 sweet potatoes like I did, it will be approximately 15 minutes in the microwave). Slice the cooked sweet potatoes into half lengthwise, then scoop out the flesh and mash it well.

Sugar: I used light brown sugar, but feel free to use normal white sugar, dark brown sugar, or even coconut sugar if you prefer. If you are diabetic or insulin-resistant, I recommend that you use Lakanto Monkfruit Sweetener (a 1:1 sugar substitute with zero glycemic index and does not raise your blood sugar).

Coconut Oil: I prefer using refined coconut oil in my cooking and baking because it has a neutral taste, as opposed to extra virgin coconut oil (which has a strong coconut taste and smell). You can also use vegan butter in equal quantities. Alternatively, if you are not lactose-intolerant, feel free to use normal dairy butter instead.

Almond Milk: I like to use my 5-minute homemade almond milk for this recipe, but feel free to use other non-dairy milks such as cashew milk, rice milk, soy milk, or coconut milk. Alternatively, if you are not lactose-intolerant, go ahead of use normal dairy milk in equal quantities.

Eggs: In this case, eggs are essential as a binder for the sweet potato filling, to help give it more form and texture without making it dense, so I wouldn’t recommend leaving it out. 

Pecans: Pecans are traditionally used in the sweet potato casserole topping, but if you don’t like the taste of pecans, feel free to swap them out for walnuts, hazelnuts, or almonds as you prefer.

Cinnamon: The ground cinnamon really adds a beautiful fall flavor. Alternatively, if you prefer, you can also use pumpkin pie spice instead.

Make Ahead: You can prepare the mashed sweet potatoes 1 to 2 days in advance and assemble the ingredients on the day itself so it’s easier. If you prefer, you can also cook the casserole 1 to 2 days in advance, cover it with plastic wrap and store it in the fridge, and heat it up just before serving.

Storing: If you have leftovers, wrap the casserole dish in plastic wrap and store in the refrigerator for up to 3 to 4 days.

Freezing: Because it contains an egg, you have to cook the casserole first before freezing. To freeze, allow the cooked casserole to cool fully before transferring it to a freezer-safe container and freezing for up to 2 months. Let the casserole thaw completely overnight in the fridge before heating up or serving.

Adapted from: Cooking Classy

  • Prep Time: 15 mins
  • Cook Time: 35 mins
  • Category: Desserts
  • Method: Baking
  • Cuisine: American

Keywords: sweet potato casserole

Did you make this recipe?

Tag @felicialimhz on Instagram and hashtag it #dishbydish

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About Felicia

Hey you! I’m Felicia, a Singaporean girl who moved to Buenos Aires for love. A couple of things about me: I love food, writing and food photography. I wrote a grain-free ecookbook that I know you’ll love and I also do freelance writing and photography if you want to work with me. Follow me on this blog as I navigate the world of cooking gluten-free, dairy-free and egg-free.

Did you make a recipe? Tag @felicialimhz on Instagram. I love to see what you cook!

Reader Interactions

Comments

  1. Dennis says

    November 26, 2021 at 11:39 pm

    I had been craving sweet potato casserole for the longest time and settled on your recipe. I still used butter but kept the almond milk to cut down on calories and fat. This was so good I went back for seconds (and I cooked it just for myself!!).
    Would probably add more pecans next time; didn’t really have enough to make a decent layer but the flavors and texture were amazing!!
    I’ll definitely keep this in my “repeat in the near future” stack and I’ll consider coconut oil as a way to make it healthier, though let’s be honest: butter makes anything taste better.

    ★★★★★

    Reply
    • Felicia Lim says

      November 28, 2021 at 9:01 am

      Hi Dennis!
      Hope you had a happy Thanksgiving! YAY that you enjoyed this sweet potato casserole so much you went back for seconds (and cooked it just for yourself). And I’ll agree that butter makes anything tastes better (but for those who have lactose intolerances, coconut oil is such a good alternative). Thanks for your feedback, hope to see you around the blog again sometime soon!

      Reply
  2. Grace Lim says

    November 02, 2021 at 8:03 pm

    Good morning Felicia,

    Sweet potatoes are themselves a source of good carb for our bodies in however way we consume them.
    The simplicity of your recipe makes it easier for us to whip up something that can be served in many different ways (side-dish or dessert etc) but just as welcomed and loved by all who enjoy the dish.

    Have a blessed day ahead with love sent from all of us in SG,
    Mum

    ★★★★★

    Reply
    • Felicia Lim says

      November 03, 2021 at 8:25 am

      Hi Mummy,
      Yes, I just love how versatile this dish is 🙂

      Love you too!!

      Reply
  3. Grace Lim says

    November 20, 2020 at 7:28 pm

    Good morning Felicia,

    This is really a very simple recipe and I particularly like to enjoy the dish as a healthy dessert to complete a light meal. Your great swuggestion to serve the dish in any way to suit the occasion in complementing the main meal is most appreciated.

    Thank you and God bless!
    Mum

    ★★★★★

    Reply
    • Felicia Lim says

      November 20, 2020 at 8:01 pm

      Hi Mummy, apparently most people think of sweet potato casserole as a side dish, but I really feel it’s way better as a dessert (like a crustless sweet potato pie!). Love you too!!

      Reply

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I’m Felicia: a girl from Singapore who moved to Buenos Aires, Argentina for love. My husband is Celiac so I test and share gluten-free recipes on my blog! I help people with food intolerances and allergies cook and eat delicious, healthy food! Stay a while, and let's be friends! ♥

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