This is a very easy recipe for stir-frying kailan using oyster sauce. I don’t used to love vegetables, but now I do. A simple plate of vegetables stir fry is a happy side dish for dinner. I usually buy 2 packets of vegetables for 2 persons, if not there will not be enough. It is incredibly cheap, healthy, delicious and quick to cook. I would say home-cooked Chinese dinner is not complete without it. Besides kailan, you can use other greens too.