01 -
Preheat oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish to prevent sticking.
02 -
Peel and slice potatoes into thin, even rounds for uniform cooking. Use a mandoline slicer for efficiency, if available.
03 -
In a large skillet over medium heat, cook ground beef and chopped onion until beef is fully browned and onions are softened, about 5–7 minutes. Drain excess fat.
04 -
Add garlic powder, onion powder, salt, and black pepper. Stir to evenly combine seasonings throughout the beef mixture.
05 -
Arrange half of the sliced potatoes as an even layer in the prepared baking dish. Top with half of the beef mixture. Repeat with remaining potatoes and beef for a second layer.
06 -
In a bowl, combine cream of mushroom soup with milk. Whisk until smooth, then pour mixture evenly over layered potatoes and beef.
07 -
Sprinkle shredded cheddar cheese over the top. Drizzle melted butter over the cheese to promote browning.
08 -
Cover the dish tightly with aluminum foil and bake for 45 minutes. Remove foil and continue baking for an additional 15 minutes, or until cheese is bubbly and golden brown.
09 -
Allow to rest for 5–10 minutes after baking for easier serving. Sprinkle with paprika for color, if desired.
10 -
Scoop portions onto plates and enjoy immediately for optimum creaminess and flavor.