Amazon has the Camp Chef Deluxe Outdoor Propane Camp Oven for $169 with free shipping. List price: $330. Features stainless steel construction, nonstick enamel cooking surface, 7,500 BTU's per burner, Oven 3,000 BTU's. With a 1 lb. propane bottle, you can hold a temperature of 350º F for up to 7 hours.
Has excellent Amazon Reviews.