My local Chinese restaurant serves something they call 'hollow veggie' - is there another name for that?!
Answers:
Best Answer - Chosen by Voters
They are called Kangkong, or Asian Water Spinach. Chinese called it 空心菜( kong xin cai) or 蕹菜 （weng cai).
Need more information: What are the ingredients in the dish, how is it cooked and served?
Yes, it's kong xin tsai.