1/2 cup diced ham
8 medium potatoes - (to 10) -- thinly sliced
1 cup grated American cheese
Salt -- to taste
Freshly-ground black pepper -- to taste
1 can cream of mushroom soup
(or 1 cup medium white sauce)
Paprika -- to taste
1 onion -- thinly sliced

In crockpot layer half of ham, half of potatoes, half of onions, half of cheese. Sprinkle with salt and pepper. Repeat layers with remaining half of ingredients. Spoon undiluted soup or white sauce over top and sprinkle with paprika. Cover and cook on LOW for 7 to 9 hours.