01 -
Preheat oven to 175°C. In a large skillet over medium heat, cook ground beef, diced onion, ½ teaspoon salt, and ¼ teaspoon black pepper until the beef is fully browned. Drain excess fat and set aside.
02 -
In a mixing bowl, whisk together cream of chicken soup, evaporated milk, whole milk, onion powder, 1 teaspoon salt, and ¼ teaspoon black pepper until smooth. Set aside.
03 -
Grease a 23x33 cm baking dish. Arrange ⅓ of the sliced potatoes on the bottom, followed by ⅓ of the beef mixture and 100 g cheddar cheese. Season lightly with salt and pepper. Repeat this layering process two more times.
04 -
Pour the prepared milk mixture evenly over the layered ingredients. Cover tightly with aluminum foil and bake for 60 minutes.
05 -
Remove foil and test potatoes for tenderness. Sprinkle remaining cheese over the casserole and bake uncovered for an additional 5 minutes until cheese is melted and golden.
06 -
Remove from oven and allow to rest for 15 minutes to allow the dish to set before portioning.