Chicken and Rice Casserole Recipe

Name: Chicken and Rice Casserole Recipe
Prep time: 10 min
Cook time: 2 h
Total time: 2 h 10 min
Cuisine: American
Ingredients: 1 can Cream of chicken soup (10.5 oz); 1 can Cream of mushroom soup (10.5 oz); 1 can Cream of celery soup (10.5 oz); 1 1/3 cup Reduced sodium chicken stock ((10.5 oz= 1 can or about 1 1/3 cup)); 2 stalks Celery (finely diced); 1 cup Long grain white rice (uncooked); 2 large Boneless skinless chicken breast (cut in half horizontally); 1/2 tsp Kosher salt (or more to taste); 3/4 tsp Black pepper (divided, or more to taste); 1/4 cup Unsalted butter (cut into 8 pieces (1/2 tablespoon each))