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Meatloaf and Mashed Potato Casserole

A tall, beautiful slice of homemade, layered Meatloaf and Mashed Potato Casserole being served for a family dinner.

A comforting and hearty casserole that combines two classic comfort foods: meatloaf and mashed potatoes. This dish features a simple, savory meatloaf layer made with ground beef and seasonings, which is pressed into a baking dish and par-baked. The meatloaf is then topped with a creamy layer of mashed potatoes enriched with sour cream and butter, and a final generous layer of shredded cheddar cheese. The entire casserole is baked again until the cheese is melted and bubbly.

Ingredients

  • For the Meatloaf Layer:
  • 1 lb ground beef (85/15)
  • 1/2 cup plain breadcrumbs
  • 1/3 cup milk
  • 1 large egg
  • 1/4 cup ketchup
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 1/2 tsp salt
  • 1/2 tsp black pepper
  • For the Mashed Potato Layer:
  • 3 cups prepared mashed potatoes (leftover or store-bought)
  • 1/4 cup sour cream
  • 2 tbsp butter
  • Salt & pepper, to taste
  • For the Topping:
  • 1 1/2 cups shredded cheddar cheese
  • Fresh parsley, for garnish (optional)

Instructions

  1. Preheat the oven to 375°F (190°C). Grease a 9×9-inch baking dish.
  2. Make the Meatloaf Layer: In a large bowl, combine the ground beef, breadcrumbs, milk, egg, ketchup, garlic powder, onion powder, salt, and pepper. Mix gently with your hands until just combined, being careful not to overmix.
  3. Press the meat mixture evenly into the bottom of the prepared baking dish.
  4. Bake uncovered for 20–25 minutes.
  5. Prepare the Topping: While the meatloaf is baking, warm the mashed potatoes in a bowl and stir in the sour cream and butter. Season with salt and pepper to taste.
  6. Assemble and Bake Again: Carefully remove the baking dish from the oven and spread the mashed potatoes in an even layer over the baked meatloaf.
  7. Sprinkle the shredded cheddar cheese evenly over the top of the potatoes.
  8. Return the dish to the oven and bake for an additional 10–15 minutes, until the cheese is melted and bubbly.
  9. Let the casserole rest for 5–10 minutes before garnishing with fresh parsley, slicing, and serving.

Notes

  • This is a great recipe for using up leftover mashed potatoes.
  • When making the meatloaf, be careful not to overmix the ingredients, as this can result in a tough texture.
  • Letting the finished casserole rest for a few minutes before slicing is a key step that helps the layers to set, making it easier to serve clean slices.
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