Sweet Potato Casserole with Canned Yams Recipe From Scratch

This sweet potato casserole with canned yams is my go-to Thanksgiving side that skips the hardest step. Peeling and boiling fresh sweet potatoes takes 40 minutes before you even start the casserole. Canned yams cut that down to zero — you open the can, mash, and bake.

Why This Sweet Potato Casserole with Canned Yams Works

Canned yams are already soft and cooked, so they mash smoothly with no lumps. Brown sugar and butter go in right away, giving the filling a caramel-forward sweetness. Eggs set the filling so it slices cleanly instead of collapsing.

The pecan brown sugar crumble bakes into a crunchy, buttery topping that cracks when you press a spoon into it. That contrast — soft creamy filling under a golden crispy crust — is what makes this casserole disappear first at the table.

I make this sweet potato casserole with canned yams the day before Thanksgiving. It reheats perfectly, which frees up the oven on the big day.

Ingredients

• 2 cans (29 oz each) canned yams, drained
• 1/2 cup (115g) unsalted butter, melted
• 2 large eggs, beaten
• 1/2 cup (100g) brown sugar, packed
• 1/4 cup (60ml) whole milk
• 1 teaspoon vanilla extract
• 1/2 teaspoon cinnamon
• 1/4 teaspoon nutmeg
• 1/4 teaspoon salt
• 1 cup (100g) chopped pecans
• 1/2 cup (100g) brown sugar, packed
• 1/3 cup (42g) all-purpose flour
• 3 tablespoons unsalted butter, melted

What You Need for Sweet Potato Casserole with Canned Yams

Canned yams — two 29 oz cans give you about 4 cups of mashed filling. Bruce’s Yams is a common brand. Drain them well — excess liquid makes the filling watery.

Butter — melted butter goes into both the filling and the topping. Unsalted lets you control the salt level.

Eggs — two beaten eggs bind the filling so it holds its shape when scooped. Do not skip them or the casserole will be too soft to serve.

Brown sugar — adds a molasses-forward sweetness. Light or dark brown sugar both work; dark gives a richer flavor.

Milk — thins the filling just enough for a smooth, creamy texture. Evaporated milk works too for a richer result.

Cinnamon and nutmeg — the classic warm spice duo for sweet potato dishes. Increase cinnamon to 1 teaspoon if you want more spice.

Pecans — chopped pecans toast during baking and add crunch. Walnuts are a fair substitute if pecans are hard to find.

Flour — holds the crumble topping together. It creates a streusel-like texture over the filling as it bakes.

How to Make Sweet Potato Casserole with Canned Yams

1. Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish.
2. Drain canned yams thoroughly. Place in a large bowl and mash until smooth.
3. Add melted butter, beaten eggs, brown sugar, milk, vanilla, cinnamon, nutmeg, and salt. Mix until fully combined.
4. Pour filling into the prepared baking dish and spread evenly.
5. Make the topping: combine chopped pecans, brown sugar, flour, and melted butter in a bowl. Stir until it forms a crumbly mixture.
6. Sprinkle the pecan topping evenly over the sweet potato filling.
7. Bake for 30 to 35 minutes until the topping is golden brown and the filling is set.
8. Let cool for 10 minutes before serving.

Sweet Potato Casserole Variations

Marshmallow Topped Sweet Potato Casserole

Skip the pecan crumble and top the filling with a single layer of mini marshmallows during the last 10 minutes of baking. Watch closely — the marshmallows brown fast. This version is sweeter and softer on top.

Pecan and Marshmallow Combo

Add the pecan crumble for the first 20 minutes, then scatter mini marshmallows over the top for the final 10 minutes. You get the crunch and the gooey sweetness in one dish.

Lighter Sweet Potato Casserole

Reduce brown sugar in the filling to 1/4 cup and use 2 tablespoons of butter instead of 1/2 cup. The casserole is less sweet but still works as a side dish next to savory turkey and stuffing.

Gluten-Free Sweet Potato Casserole

Replace the all-purpose flour in the topping with almond flour or a 1:1 gluten-free flour blend. The crumble texture is slightly denser but still crunchy after baking.

Tips for the Best Sweet Potato Casserole with Canned Yams

• Drain the canned yams very well — even a tablespoon of extra liquid makes the filling wet and loose.
• I mash the yams by hand first, then use a hand mixer for 30 seconds to get a completely smooth filling.
• Make the topping crumble first and refrigerate it while you prepare the filling — it holds together better when cold going onto the warm filling.
• This sweet potato casserole with canned yams can be fully assembled and refrigerated overnight. Add an extra 5 minutes to the bake time if going straight from the fridge.
• Cover loosely with foil if the topping browns too quickly before the filling is set.
• Serve with a slotted spoon — the filling is soft and needs support when scooped.

Make Ahead & Storage

This sweet potato casserole keeps in the fridge for up to 4 days covered tightly with plastic wrap or in an airtight container. I always make it the night before Thanksgiving to free up oven space on the actual day.

To freeze, let the casserole cool completely. Cover with plastic wrap and then foil. Freeze for up to 2 months. Thaw in the refrigerator overnight, then reheat covered at 325°F (165°C) for 20 minutes or until warmed through.

Common Questions

What is the difference between canned yams and canned sweet potatoes?

In the US, canned yams and canned sweet potatoes are usually the same vegetable — just labeled differently. True yams are a different species, but store shelves sell them interchangeably. Either can works in this casserole.

Can I make sweet potato casserole with canned yams ahead of time?

Yes. Assemble the casserole fully, cover tightly, and refrigerate for up to 2 days before baking. Add 5 extra minutes to the bake time when cooking from cold. The topping is best added right before baking so it stays crisp.

How do I know when the casserole is done?

The pecan topping should be deep golden brown and the edges of the filling should look set and slightly pulling away from the sides of the dish. A toothpick inserted in the center should come out clean.

Can I use fresh sweet potatoes instead of canned yams?

Yes. Peel and cube 3 lbs of sweet potatoes. Boil until tender, about 15 minutes, then drain and mash. The flavor is slightly less sweet than canned yams, so you may want to add an extra tablespoon of brown sugar.

This sweet potato casserole with canned yams is the easiest version of a holiday classic. Save this recipe and bring it to your next Thanksgiving or Christmas dinner.