1 lb. hamburger
1 can cream of mushroom soup
Cheese slices
1 can new potatoes (med. size)
Chopped onion to taste (opt.)

Brown hamburger and onion. Layer in a casserole dish; layer of hamburger, layer of sliced potatoes, layer of cheese, layer of mushroom soup. Repeat layers. Top with another layer of cheese. Bake at 350 degrees until cheese bubbles.