Sour Cream Scalloped Potatoes w Ham

2 slices of ham - 1/2 inch thick, cut into 8 pieces
1 can cream of mushroom soup
1 cup sour cream
1 tsp salt
dash pepper
8 medium potatoes, thinly sliced
1 large onion, thinly sliced
1 cup shredded cheddar cheese

Combine soup, sour cream, salt and pepper
In a greased 3 qt casserole dish, alternate layers of ham, potatoes, onions and soup mixture
Top with cheese.

Bake at 325 degrees for 2 1/2 hours