Step 1

1️⃣ Preheat the Oven: Preheat your oven to 375°F (190°C). Lightly grease a 9×9-inch baking dish or an 8×8-inch dish for a thicker casserole.

Step 2

2️⃣ Make the Meatloaf Base: In a large mixing bowl, combine the ground beef, breadcrumbs, egg, milk, chopped onion, garlic powder, salt, pepper, Worcestershire sauce, and half of the ketchup. Mix until well combined.

Step 3

3️⃣ Form and Bake the Meatloaf Base: Press the meat mixture evenly into the prepared baking dish, spreading it to cover the bottom. Spread the remaining ketchup on top. Bake in the preheated oven for 20-25 minutes, until the meat is cooked through and no longer pink.

Step 4

4️⃣ Add the Topping: Carefully spread the mashed potatoes evenly over the cooked meatloaf layer. Sprinkle the shredded cheese on top, then add the crumbled bacon.

Step 5

5️⃣ Bake Again: Return the casserole to the oven and bake for an additional 10-15 minutes, or until the cheese is melted and bubbly.

Step 6

6️⃣ Garnish and Serve: Remove from the oven, and sprinkle with green onions or chives, if desired. Let cool slightly before slicing and serving.