Free Range Organic Chicken Casserole

3 cups free range organic chicken breasts, cooked & cubed 1 (13 ounce) package chicken rice-a-roni 1/2 cup mayonnaise 1 (10 3/4 ounce) can cream of chicken soup 1 1/4 cups milk 1 cup chicken broth 1 cup celery, chopped 1/2 cup yellow onion, chopped 3 (7 ounce)...