Swiss chard/Cabbage/Pak Choi/Whatever
Anything green and cabbage like will do for this. Its very tasty and quick. I have used Swiss Chard and pointed cabbage as they are both in season in the UK right now.
Cleaned and chopped how you like, into a hot pan with toasted sesame oil, 3 mins or so before end throw some sliced garlic in (Garlic will overcook easily), a handful of sesame seeds and a few lugs of soy sauce.