A hearty and delicious casserole combining layers of seasoned beef, creamy potatoes, and melted cheese.
Preheat your oven to 350°F (175°C).
Preheating ensures even cooking from the start.
In a skillet, cook the ground beef over medium heat until browned, breaking it apart with a wooden spoon.
Use lean ground beef to reduce excess grease.
Add the chopped onion and diced green bell pepper to the skillet and sauté until softened.
Cook the vegetables until they are tender but not mushy.
Stir in the garlic powder, seasoning salt, and black pepper, mixing well.
Adjust the seasoning to your taste preference.
In a mixing bowl, combine sour cream, grated Parmesan cheese, garlic powder, seasoning salt, and black pepper.
Mix until the sauce is smooth and well-blended.
Slice the potatoes thinly and evenly.
Using a mandoline slicer can help achieve uniform slices.
In a greased baking dish, layer half of the potato slices, followed by half of the sauce, and then half of the beef mixture. Repeat the layers.
Press down gently on each layer to compact the casserole.
Cover the dish with foil and bake in the preheated oven for 1 hour.
Covering with foil prevents the top from drying out.
Remove the foil, sprinkle shredded cheddar cheese on top, and bake uncovered for an additional 20 minutes.
Bake until the cheese is melted and bubbly.
Let the casserole rest for 10 minutes before serving.
Resting allows the layers to set and makes serving easier.
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