The mini cast iron au gratin pan is great for indoor use, in the oven, on the stove, or outdoor on a campfire. It"s oven safe to 500 degrees. Good for making individual servings or side dishes. Constructed of 100-Percent cast iron for superior heat distribution and retention. The Ecolution cast iron products are also pre-seasoned with vegetable oil. Made from all natural materials. Oven to table, indoor chic, outdoor tough.