Yangtze — opposite KFC in the food hall of Westfield Derby(Eat Central) is great! You get to choose a box size, i think its from 4 pieces to 5 pieces or choose a fill your box — meaning just fill your box with whatever you want to get. The staff move along with you so they put things in the box and i do sometimes think they are a little reluctant to fill your box with as much as you want but still this place is brill! Food is great and very tasty! You just choose from the dishes offered within the glass cabinet, its a mini all you can eat buffet with a few restrictions. The staff could be a little more friendly and as i said they dont always seem willing to give you as much as you want but it is a very nice treat!