Antje I tried to post this as a reply, but couldn't so am trying to post it without a reply to your post about Chinese cabbage.
You could use it as the basis of a stir-fry and add fish or meat and other vegetables that you have to hand.
Or you could try this (quite complicated, but you could adapt it):
Or scrambling some egg, putting it aside while you stir fry the shredded cabbage and other shredded vegetables and then put it all back together.
Edit: or how about Ch cabbage chopped into small chunks, some onion or spring onion, chopped and some tomato, also chopped and the whole lot braised gently in butter? You could have that as a side dish with your fish, or with some kind of sausage.
For all of them: Probably need soy sauce if you like it, or other sauce (maybe Branston, if you have it), and seasoning.