Air Fryer Sweet Potato Casserole

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This air fryer sweet potato casserole might just become your new holiday tradition — or your go-to weeknight side dish. You’ll get all the creamy, caramelized goodness of the classic version, but in half the time and with way less fuss. The air fryer gives the top that perfect golden crunch while keeping the sweet potato filling silky smooth underneath.

I used to think sweet potato casserole was strictly a Thanksgiving thing until I made it in my air fryer on a random Tuesday. Now it shows up at our table year-round, and honestly, no one’s complaining.

Whether you’re making this air fryer sweet potato casserole for a holiday spread or just because you’re craving something comforting, you’re going to love how simple it is.

Ingredients

You’ll need just a handful of ingredients to make this air fryer sweet potato casserole. Everything’s easy to find, and chances are you’ve got most of it already.

For the sweet potato base:

• 3 medium sweet potatoes (about 2 pounds)
• 3 tablespoons unsalted butter, melted
• ¼ cup brown sugar, packed
• ¼ cup whole milk or heavy cream
• 1 large egg, beaten
• 1 teaspoon vanilla extract
• ½ teaspoon ground cinnamon
• ¼ teaspoon ground nutmeg
• ¼ teaspoon salt

For the pecan topping:

• ½ cup chopped pecans
• 3 tablespoons brown sugar
• 2 tablespoons all-purpose flour
• 2 tablespoons unsalted butter, melted
• Pinch of salt

Substitutions: You can swap the milk for almond milk or coconut milk if you’re dairy-free. Maple syrup works in place of brown sugar for a deeper flavor. If you don’t have pecans, walnuts or even sliced almonds will give you that crunch. For a lighter version, use Greek yogurt instead of cream.

How to Make Air Fryer Sweet Potato Casserole

Here’s how to turn those sweet potatoes into the creamiest, most delicious casserole your air fryer has ever seen.

1. Cook the sweet potatoes. Pierce each sweet potato several times with a fork, then place them in the air fryer basket at 400°F (200°C) for 25 minutes, flipping halfway through, until they’re fork-tender and soft all the way through.
2. Prepare the filling. Let the sweet potatoes cool for 5 minutes, then scoop out the flesh into a large bowl and discard the skins — you should have about 3 cups of cooked sweet potato.
3. Mash and mix. Add the melted butter, brown sugar, milk, beaten egg, vanilla, cinnamon, nutmeg, and salt to the sweet potatoes, then mash everything together until smooth and creamy with no lumps remaining.
4. Transfer to baking dish. Spray a 7-inch round or square air fryer-safe baking dish with cooking spray, then spread the sweet potato mixture evenly into the dish and smooth the top with a spatula.
5. Make the pecan topping. In a small bowl, combine the chopped pecans, brown sugar, flour, melted butter, and a pinch of salt, stirring until the mixture looks like coarse crumbs.
6. Add the topping. Sprinkle the pecan mixture evenly over the sweet potato filling, making sure to cover the entire surface for maximum crunch.
7. Air fry the casserole. Place the dish in the air fryer basket and cook at 350°F (175°C) for 12 minutes, until the topping is golden brown and the filling is heated through and slightly puffed around the edges.
8. Cool and serve. Remove the dish carefully using oven mitts, let it cool for 5 minutes to set, then scoop and serve warm with your favorite main dishes.

Recipe Variations

This air fryer sweet potato casserole is incredibly versatile. Here are three ways to switch things up based on what you’re craving.

What to Serve With Air Fryer Sweet Potato Casserole

This casserole is a natural side dish for so many mains. It’s sweet enough to balance savory proteins but not so sugary that it feels like dessert.

Serve it alongside air fryer whole chicken for a complete comfort food dinner. It also pairs perfectly with air fryer pork chops — the sweetness complements the savory, juicy meat beautifully.

For holiday meals, add it to your spread with roasted turkey, green bean casserole, and cranberry sauce. It’s also great with grilled steak or even a simple rotisserie chicken from the store when you need dinner on the table fast.

If you’re going full Thanksgiving mode, round out the meal with air fryer Brussels sprouts and some dinner rolls. The sweet and savory combo is unbeatable.

Storage & Reheating

Store leftover air fryer sweet potato casserole in an airtight container in the fridge for up to 4 days. Make sure it’s completely cooled before sealing it up to avoid condensation and sogginess.

To reheat, place individual portions in the air fryer at 320°F (160°C) for 5 minutes until warmed through. If you’re reheating the whole casserole, cover it loosely with foil and air fry for 8 minutes, removing the foil for the last 2 minutes to crisp the topping back up.

You can freeze this casserole for up to 2 months. Wrap it tightly in plastic wrap, then again in foil. Thaw overnight in the fridge before reheating. The texture stays surprisingly good, though the topping might need a quick refresh under the air fryer to get crispy again.

Frequently Asked Questions

Can I use canned sweet potatoes instead of fresh?

Yes, you can use canned sweet potatoes or yams in a pinch. Drain them well and pat dry with paper towels before mashing. You’ll need about two 15-ounce cans. The texture won’t be quite as fluffy as fresh, but it’ll still taste great and save you a ton of time.

Do I need to peel the sweet potatoes before cooking?

No, you don’t need to peel them before air frying. The skins slip right off after cooking when the sweet potatoes are soft. Just let them cool for a few minutes so you don’t burn your hands, then scoop out the flesh and discard the skins.

Can I make this air fryer sweet potato casserole ahead of time?

Absolutely. Prepare the casserole up to the point of adding the topping, then cover and refrigerate for up to 24 hours. When you’re ready to serve, add the pecan topping and air fry as directed, adding 2-3 extra minutes since it’s starting cold.

What size air fryer do I need for this recipe?

You’ll need at least a 5-quart air fryer to fit a 7-inch baking dish comfortably. If you have a smaller air fryer, divide the mixture between two smaller dishes and cook them in batches, or cut the recipe in half.

Can I make this without eggs?

Yes, you can leave out the egg if needed. The casserole will be slightly less firm and creamy, but it’ll still hold together. For a vegan version, use plant-based butter and milk, skip the egg entirely, and add an extra tablespoon of melted butter to keep it moist.