Crockpot Pork Chops and Potatoes

1 large onion, sliced
3 potatoes, sliced
4 to 6 boneless pork chops
1 can cream of mushroom soup, undiluted

Spray crock pot with nonstick spray. Layer onions, then potatoes, then chops. Pour soup over chops. Cook 8 hours on LOW or 4-5 hours on HIGH.