Cooking this casserole is as easy as pie—well, actually, even easier. Let’s walk through the steps:

1. Preheat your oven to 375°F. Grease a large baking dish and set aside.
2. In a large skillet, heat olive oil over medium heat. Add the chopped onion and minced garlic, sautéing until the onion becomes translucent, about 3-4 minutes.
3. Add the ground beef to the skillet, cooking and breaking it apart until it’s browned and cooked through. Drain any excess fat.
4. Stir in the flour, salt, pepper, and paprika, cooking for another minute.
5. Gradually add the beef broth and milk, stirring continuously to form a smooth sauce. Let it simmer until thickened, about 5 minutes.
6. Layer half of the sliced potatoes at the bottom of the prepared baking dish.
7. Pour half of the beef mixture over the potatoes, spreading it evenly.
8. Repeat with the remaining potatoes and beef mixture.
9. Sprinkle the shredded cheddar cheese on top.
10. Cover the dish with foil and bake in the preheated oven for 45 minutes. Remove the foil and bake for an additional 15 minutes, or until the cheese is bubbly and golden brown.
11. Let the casserole cool for a few minutes before serving. Garnish with fresh parsley if desired.

Personal Tip: I like to prepare everything in advance, so I can pop the casserole in the oven as soon as the kids get home. That way, dinner is ready before anyone can say, “I’m starving!”