Stoneware Baking Dish Oven Tray - GreenThis rectangular casserole dish is perfect for baking smaller servings of lasagna, pasta, stews, and other meals. Our Stoneware Series has the delicate, smooth feel of porcelain and the warm appearance of earthenware pottery. Stoneware is a type of low porosity pottery that is fired at a very high temperature and has excellent heat retention. Its hardness and density make it highly durable and more resistant to chipping.