Spray your crockpot with nonstick cooking spray. Layer half of the ham on bottom, then half of potatoes. Salt and pepper the potatoes. Then place half of the sliced onions followed by half of the shredded cheese in the crockpot. Pour one can of soup over the cheese and spread. Repeat the layers and finish by sprinkling generously with paprika. Cook 4-5 hours on high or on low for 7-8 hours until potatoes are tender.