Mamaw’s Chicken and Rice Casserole

Ingredients

• 3 chicken breasts, cut into cubes
• 2 cups water
• 2 cups instant white rice
• 1 (10.75 ounce) can cream of chicken soup
• 1 (10.75 ounce) can cream of celery soup
• 1 (10.75 ounce) can cream of mushroom soup
• salt and ground black pepper to taste
• 1/2 cup butter, sliced into pats