Chicken Casserole with Rice Recipe

Ingredients

• 0.5 cup all-purpose flour
• 1 teaspoon salt
• 0.5 teaspoon ground black pepper
• 4 cups milk
• 6 ounces Muenster cheese, or more to taste, cubed
• 4 ounces Cheddar cheese, cubed
• 2 cups cooked white rice
• 2 cooked chicken breasts, chopped
• 2 cups seasoned bread crumbs
• 0.5 cup melted butter