GreenGate ovendishes Looking for a unique ovendish? A great collection of GreenGate ovendishes and other products for in the oven. The oven dish products (oven dish sets, oven casseroles and pie dishes) are made of strong heavy stoneware that is robust and chip resistant. The dots on the products are hand painted, which gives the items a rustic and handmade look. The products can withstand temperature changes and are safe for oven, microwave, dishwasher and freezer, but can not go directly on the stove.