Options for non-stick frying pans - not using teflon
Cast iron or carbon steel. Both require seasoning with oil and neither are non-stick immediately, but rather after seasoning and some use, the pans become more non-stick over time. But once they're properly seasoned, they're as non-stick or nearly as non-stick as teflon and the like. They do, however, require the use of fats in cooking. And they can last 30 or 50 years. Or longer.