Fajita Chicken Casserole

Ingredients:

4 cups shredded cooked chicken

2 cups instant rice, uncooked

1 can (10.5 oz) condensed cream of chicken soup

1 cup sour cream

1 cup frozen diced onion and bell pepper blend

1 (1 oz) packet fajita seasoning mix

1 1/2 cups shredded Mexican cheese blend, divided

1 cup water or chicken broth