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Ultra Easy 30-Minute Sweet Potato Casserole with Crunchy Pecan Topping

Close-up of a slice of easy sweet potato casserole featuring a bright orange filling and a crunchy pecan streusel topping.

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Make this simple sweet potato casserole that comes together quickly. It features creamy mashed sweet potatoes topped with a buttery, crunchy pecan streusel, perfect for holiday side dishes or weeknight comfort food.

Ingredients

Scale
  • 3 cups cooked and mashed sweet potatoes (about 3 large)
  • 1/2 cup granulated sugar
  • 1/2 cup packed light brown sugar
  • 1/2 cup (1 stick) unsalted butter, melted
  • 2 large eggs, lightly beaten
  • 1/2 cup milk
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon salt
  • For the Topping:
  • 1 cup packed light brown sugar
  • 1/3 cup all-purpose flour
  • 1/3 cup (about 5 tablespoons) cold unsalted butter, cut into small pieces
  • 1 cup chopped pecans

Instructions

  1. Preheat your oven to 375 degrees F. Lightly grease a 9×13 inch baking dish.
  2. In a large bowl, combine the mashed sweet potatoes, granulated sugar, brown sugar, melted butter, eggs, milk, vanilla extract, and salt. Mix until the ingredients are just combined and smooth. Do not overmix.
  3. Pour the sweet potato mixture evenly into the prepared baking dish.
  4. Prepare the topping: In a separate medium bowl, combine the brown sugar and flour for the topping. Cut in the cold butter using a pastry blender or your fingers until the mixture resembles coarse crumbs. Stir in the chopped pecans.
  5. Sprinkle the pecan topping evenly over the sweet potato mixture.
  6. Bake for 25 to 30 minutes, or until the topping is golden brown and the casserole is heated through.
  7. Let the casserole cool for 5 minutes before serving.

Notes

  • For a marshmallow topping, skip the pecan topping ingredients. After spreading the sweet potato mixture in the dish, top it with 2 cups of mini marshmallows during the last 5 minutes of baking until they are puffed and lightly golden.
  • You can use canned sweet potatoes or yams for this recipe to save time.
  • You can prepare the sweet potato base one day ahead and keep it covered in the refrigerator. Add the topping just before baking.

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