I was in here recently as one of the last customers on a Saturday afternoon. The staff started clearing away etc. Just as I was leaving to see a member of staff came out of the kitchen with a plateful of food to eat on a seat outside. I was surprised to see that his meal of choice was a fish. I don't mean some sort of mock meat or a piece of taro in batter shaped like a fish that us very popular here. It was unmistakeably a fish complete with head, gills, fins etc.
I question whether that means that is a genuinely 100% vegetarian restaurant. The customer menu may be all vegetarian. The kitchen certainly doesn't appear to be all vegetarian.
Updated from previous review on Saturday August 30, 2014
I have to go along with everything everyone else has said to far about this place. Quick, tasty and bargain priced.
The staff didn't seem to speak any English when I was trying to ask for no eggs. Another customer intervened and all was taken care of. 31 buck HK for that meal today in central HK is a great deal for anyone on a budget or otherwise.
Cons: Staff cook fish in the kitchen