In a large bowl, combine the soup, sour cream, water and pepper.
Stir in the potatoes, cheese and ham.
Transfer to a greased 11-in. x 7-in. baking dishes. Cover and bake the remaining casserole at 375° for 40 minutes. Uncover and bake 10-15 minutes longer or until bubbly. Let stand for 10 minutes before serving. Yields 5 servings.
Notes
To freeze casserole: Cover and freeze one casserole for up to 3 months. Thaw in the refrigerator overnight. Remove from the refrigerator 30 minutes before baking. Bake as directed.