Diz asked what Yum Cha is... why are you asking this question? How can you not know what Yum Cha is?!?!?!
I have taken the liberty of googling Yum Cha and you can find the answer here. My fave dish is prawn wrapped in rice noodles with soy sauce... and this time I could eat it!!! Actually, I could eat all 3 portions of them.. and the prawns went down easy.. but I was still amazingly full afterwards (still some restriction there!!)
All I can say... Yum Cha = Deliciousness!