Crockpot Green Beans

3 cans cut green beans, drained
1 can - 10 1/2 ounce french fried onion rings, crumbled
3 cups grated cheddar cheese
2 - 8-oz cans water chestnuts
3 cans soup (choose either cream of chicken, or cream of mushroom, or cream of celery)
3/4 cup milk
salt and pepper to taste

In your crock pot, layer in the green beans, onion rings and water chestnuts. Combine the soup, milk, salt and pepper in a small bowl. Pour soup mixture over top of green beans. Do not stir. Cook on low 6 hours or high for 3 hours.