Rich and Strange Aeons

Cabbage is more robust, but I think lettuce and spinach would work to prevent dumplings or meatballs from sticking, even if they themselves become flimsy enough that they can't be pulled off the streamer and instead need to be gently scraped.

One nice thing about lining the steamer with leaves is that any juices that come out of the things on top will be partially picked up by the leaves.