1 to 1 1/2 lb. ground beef
1 medium onion, chopped
garlic and salt to taste
3 large potatoes, sliced and cooked
1 pkg. mild Cheddar cheese
1 can cream of mushroom soup

Cook ground beef and onion with salt and garlic; drain. Put into bottom of casserole dish. Add cooked potatoes, then Cheddar cheese. Top with soup and sprinkle remaining cheese on top.

Bake at 400°F for 20 to 25 minutes.