This piece is most useful. Anything you can do in a crockpot, you can do in the oven. Approximately 4 quarts in volume. Tureen has lid cut-out for serving utensil. Casserole has full lid with round body. Handles on top and sides (may vary from picture).Check out Clifford A. Wright's"Bake Until Bubbly" as a wonderful addition to a Clay Coyote Casserole or"The Best Soups in the World" to go along with a soup tureen. For smaller casseroles, please check here.