Mexican Chicken Casserole
["4 or 5 chicken breasts or whole chicken", "1 stick margarine", "3/4 c. chopped onion", "2 cans cream of chicken soup", "1 can chicken broth", "1 can Ro-Tel tomatoes", "1 1/2 c. cheese", "16 oz. bag taco-flavored Doritos"]
["Boil chicken breasts or whole chicken.", "Remove from bone and cut chicken in small pieces.", "Set aside."]
["chicken breasts", "margarine", "onion", "cream of chicken soup", "chicken broth", "Ro-Tel tomatoes", "cheese", "taco"]