Chicken Cordon Bleu Casserole

5 chicken breasts
6 slices of ham
8 slices swiss cheese
1 can cream of chicken
1/2 c. sour cream
1/4 c. water
2 c. crushed ritz crackers
1/2 c. butter
Chop up 5 chicken breasts and spread in 9x13 baking dish.
Chop up 6 slices of ham and spread over the chicken.
Cover the chicken and ham with 8 slices of swiss cheese.
In a bowl, mix together cream of chicken soup, sour cream, and water. Pour mixture over the top of chicken.
Mix crushed ritz crackers with melted butter. Crumble over chicken.
Bake at 275 for 2 1/2 hours. Cover with foil for the first 2 hours. then remove foil to let chicken brown for the last 1/2 hour. Use gravy to serve over rice or noodles.