Preheat Oven: Set to 375°F (190°C).
Sauté Aromatics: Cook onion and garlic until fragrant.
Brown Beef: Add beef, cook until browned, drain.
Mix Sauce: Combine soup, milk, salt, pepper, paprika.
Assemble Layers: Layer potatoes, beef, sauce.
Bake Covered: 45 minutes covered.
Add Cheese: Top with cheddar, bake 15 more minutes.
Cool and Serve: Let rest 10 minutes before serving.
