Zest are premium insulated casseroles from Milton and SQ Professional . The stylish design and exclusive metallic accents add a level of elegance to your dining experience. Zest casseroles are great for keeping your food the perfect temperature for hours on end. The superior insulation retains heat, perfect for serving food at functions, gatherings or to keep food hot at the dinner table. The convenient size and weight makes them easy to carry and store. Zest casseroles are also freezer safe, making them the best choice for storing homemade ice cream or freezing left overs.