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Loaded Mashed Potato Casserole Recipe

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4.1 from 82 reviews

Creamy mashed potatoes baked with rich cheddar cheese, crispy bacon, tangy sour cream, and fresh green onions, this Loaded Mashed Potato Casserole is a comforting side dish that turns classic loaded baked potato flavors into an easy, crowd-pleasing casserole perfect for holidays or weeknight dinners.

  • Total Time: 35 mins
  • Yield: 6 servings

Ingredients

Mashed Potato Mixture

  • 4 cups mashed potatoes (leftover or freshly made)
  • 1/2 cup sour cream
  • 1/4 cup milk or cream
  • 2 tbsp butter, melted
  • Salt & pepper to taste

Toppings

  • 1 cup shredded cheddar cheese
  • 4 slices cooked bacon, crumbled
  • 2 green onions, sliced (for garnish)

Instructions

  1. Preheat Oven: Preheat your oven to 350°F (175°C) to ensure it reaches the perfect temperature for baking the casserole evenly.
  2. Mix Mashed Potatoes: In a large bowl, combine the mashed potatoes with sour cream, milk or cream, melted butter, and a pinch of salt and pepper. Stir well until the mixture is smooth and creamy.
  3. Spread in Baking Dish: Transfer the potato mixture into a baking dish, spreading it out evenly with a spatula to create a flat surface.
  4. Add Toppings: Sprinkle the shredded cheddar cheese evenly over the top, followed by the crumbled cooked bacon, distributing the toppings to cover the potatoes.
  5. Bake: Place the dish in the preheated oven and bake for 20 to 25 minutes, until the casserole is heated through, bubbly, and the cheese is melted and slightly golden.
  6. Garnish and Serve: Remove from the oven and sprinkle the sliced green onions over the top for a fresh, vibrant finish. Serve warm as a delicious, comforting side dish.

Notes

  • Use leftover mashed potatoes to save time and add convenience.
  • Add garlic powder or ranch seasoning to the potato mixture for extra flavor depth.
  • This casserole can be prepared ahead of time and refrigerated until ready to bake.
  • For a vegetarian version, omit the bacon and add extra cheese or sautéed mushrooms.
  • Author: Jessica
  • Prep Time: 10 mins
  • Cook Time: 25 mins
  • Category: Side Dish, Casserole
  • Method: Baking
  • Cuisine: American