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Best Easy Cheesy Sweet Potato Casserole with Pecan Streusel

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A quick and easy sweet potato casserole with sharp cheddar cheese and a buttery pecan streusel topping. Perfect for weeknights or holiday dinners, this savory-sweet dish is ready in about 35 minutes.

Ingredients

Scale
  • 4 medium sweet potatoes (about 2 pounds), peeled and sliced into ¼-inch rounds
  • 2 tablespoons olive oil
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon garlic powder
  • ¼ teaspoon smoked paprika (optional)
  • 2 cups sharp cheddar cheese, shredded (about 8 ounces)
  • ¼ cup grated Parmesan cheese
  • ½ cup sour cream
  • 1 cup pecans, roughly chopped
  • ¼ cup unsalted butter, melted
  • ¼ cup all-purpose flour
  • 2 tablespoons brown sugar, packed
  • ½ teaspoon salt
  • ¼ teaspoon cayenne pepper (optional)

Instructions

  1. Preheat your oven to 400°F (200°C).
  2. Peel the sweet potatoes and slice into ¼-inch rounds.
  3. In a large bowl, toss the sweet potato slices with olive oil, salt, pepper, garlic powder, and smoked paprika (if using) until evenly coated.
  4. Arrange the sweet potato slices in a 9×13-inch baking dish in overlapping rows, spreading them out in an even layer.
  5. In a small bowl, combine the shredded cheddar, Parmesan, and sour cream. Stir until it forms a thick paste.
  6. Spread the cheese mixture evenly over the sweet potatoes.
  7. In the same large bowl, combine the chopped pecans, melted butter, flour, brown sugar, salt, and cayenne (if using). Stir until everything is coated and clumpy.
  8. Sprinkle the pecan mixture evenly over the cheese layer.
  9. Cover the dish with aluminum foil and bake for 20 minutes.
  10. Remove the foil and bake for another 10-15 minutes, until the streusel is golden brown and the edges are bubbly, and the sweet potatoes are tender when pierced with a fork.
  11. Let the casserole rest for 5 minutes before serving.

Notes

Slice sweet potatoes evenly for even cooking. Toast pecans before using for extra flavor. Do not skip the rest time after baking. For gluten-free, use almond flour instead of all-purpose flour. For dairy-free, use dairy-free cheddar, sour cream, and butter. For nut-free, substitute pecans with sunflower seeds or pumpkin seeds.

Nutrition

Keywords: sweet potato casserole, cheesy sweet potato casserole, pecan streusel, quick side dish, weeknight dinner, holiday side dish

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