Casablanca Casserole, 12 oz. Casablanca ovenware is fully vitrified, non-porous, non-absorbent and withstands temperatures up to 550F. It s completely oven-safe for conventional, convection and microwave ovens, and can go directly from the freezer to the oven. Strong glaze is resistant to stains and scratches. Packed 3 dozen to a case.