There’s something magical about the aroma of sweet potatoes baking in the oven, topped with a golden, buttery crumble. This Gluten Free Sweet Potato Casserole is everything you love about the classic dish—comforting, indulgent, and oh-so-satisfying—without the gluten. Perfect for holiday dinners or any time you’re craving a taste of nostalgia, this recipe is a crowd-pleaser even for those who aren’t gluten-sensitive.

I first made this dish when a close friend with celiac disease joined our Thanksgiving dinner. It was such a hit that now, it’s a staple on our table every year. Let me show you how to make this delightful dish step by step.

Why You’ll Love This Gluten Free Sweet Potato Casserole

Get ready to discover a new favorite in your gluten-free recipe collection. This casserole brings together rich, velvety sweet potatoes and a crisp topping that will have everyone asking for seconds.

First, it’s incredibly easy to make. With just a handful of simple ingredients and minimal prep time, you can have this dish ready to bake in no time. It’s ideal for busy holiday schedules or even weeknight dinners.

It’s also naturally gluten-free, using wholesome ingredients like almond flour and oats (certified gluten-free) for the topping. No one will notice it’s missing traditional wheat flour—the texture and flavor are just as amazing.

This recipe is family-friendly and adaptable. Whether you have picky eaters or dietary restrictions to consider, the flavors and textures are universally appealing.

Lastly, it’s a versatile dish. While it shines during the holidays, this casserole is perfect alongside roasted chicken or pork any time of year.

Let’s dive into the ingredients and how they come together to create this masterpiece!

Ingredients Notes

The magic of this Gluten Free Sweet Potato Casserole lies in its balance of sweet, creamy, and crunchy. Each ingredient plays a crucial role in creating this delightful dish.

Sweet Potatoes: The star of the dish, these are naturally sweet and packed with vitamins. Use fresh sweet potatoes for the best flavor and texture. Roasting them enhances their natural sweetness.
Butter: Adds richness and helps create a velvety base. For a dairy-free option, substitute with coconut oil or vegan butter.
Brown Sugar: Balances the natural sweetness of the potatoes with a caramel-like depth. You can use coconut sugar for a refined sugar-free option.
Almond Flour and Gluten-Free Oats: These create a crunchy, golden topping. Be sure to use certified gluten-free oats if you're serving someone with celiac disease.
Pecans: Add a nutty crunch that pairs perfectly with the sweetness of the casserole. Walnuts or hazelnuts also work well as substitutes.
Cinnamon and Nutmeg: These warm spices enhance the sweet potatoes’ natural flavor and give the dish a cozy, holiday feel.

For equipment, you’ll need a 9x13-inch baking dish, a large mixing bowl, and a food processor (optional) to make the topping extra fine.

How to Make This Gluten Free Sweet Potato Casserole

Creating this casserole is a straightforward process. Here’s how to make it step by step:

Prepare the Sweet Potatoes
Start by peeling and cubing 4-5 medium-sized sweet potatoes. Boil them in salted water until fork-tender, about 15 minutes. Drain and mash until smooth.
Make the Sweet Potato Base
In a large mixing bowl, combine the mashed sweet potatoes with ¼ cup of butter, ½ cup of brown sugar, and ½ teaspoon each of cinnamon and nutmeg. Stir in 2 beaten eggs to help bind the mixture, and season with a pinch of salt. Spread the mixture evenly into a greased baking dish.
Prepare the Topping
In a medium bowl, mix together ½ cup of almond flour, ½ cup of gluten-free oats, ⅓ cup of chopped pecans, ⅓ cup of brown sugar, and ¼ cup of melted butter. The mixture should be crumbly but cohesive.
Assemble the Casserole
Sprinkle the topping evenly over the sweet potato base. For an extra-crunchy topping, press the mixture lightly into the sweet potatoes before baking.
Bake to Perfection
Bake in a preheated oven at 350°F (175°C) for 25-30 minutes, or until the topping is golden brown and the casserole is heated through. Let it cool slightly before serving.

This casserole is ready in under an hour and serves 8-10 people.

Storage Options

This Gluten Free Sweet Potato Casserole stores beautifully, making it perfect for prepping ahead of time.

Refrigeration: Store leftovers in an airtight container in the fridge for up to 4 days.
Freezing: Freeze the unbaked casserole for up to 3 months. Wrap the dish tightly in plastic wrap and foil to prevent freezer burn. Thaw overnight in the refrigerator before baking.
Reheating: Warm leftovers in the oven at 350°F until heated through, or microwave individual portions for 1-2 minutes.

Variations and Substitutions

This recipe is wonderfully adaptable, so don’t hesitate to make it your own!

Dairy-Free Version: Replace the butter with coconut oil or a plant-based alternative, and use almond milk in place of any cream.
Nut-Free Option: Swap the pecans for sunflower seeds or omit them altogether for a simpler topping.
Low-Sugar Alternative: Use maple syrup instead of brown sugar in the base and topping for a more natural sweetness.
Vegan Adaptation: Replace the eggs with flax eggs (1 tablespoon of ground flaxseed mixed with 2.5 tablespoons of water equals 1 egg).
Marshmallow Topping: For a traditional twist, top the casserole with mini marshmallows during the last 10 minutes of baking.

Final Thoughts

This Gluten Free Sweet Potato Casserole proves that comfort food can be inclusive and just as delicious as the classics. Whether you’re hosting a holiday dinner or craving a sweet-savory side dish, this recipe is sure to impress. So grab your apron, preheat the oven, and let the magic of sweet potatoes transform your table.

Let me know how it turns out—I can’t wait to hear your thoughts!