Lava Cast Iron Round Multipurpose Casserole. Trendy, Dia. 28cm. Lava Cast Iron Round Multipurpose Casserole. Dia. 28cm. Cast Iron Round Casserole 28cm Volcanic Lava Cast Iron Round Deep Casserole. 1 Handle, Dia. 28cm. Le Creuset Signature Cast Iron Saucepan Volcanic Art of Living Cookshop. This 28cm cast iron round casserole is designed for even heat distribution and excellent heat retention, making it ideal for slow cooked meals. Its durable construction ensures long lasting performance, while the generous size accommodates family sized portions. Suitable for use on various heat sources, it offers versatile cooking options for stews, casseroles, and more.