Yum Ta is a restaurant in Hong Kong that serves Chinese cuisine. Rex's old gang enjoy eating there from time to time to usually celebrate. They are usually seen being served by a Chinese hostess.
The restaurant was first introduced when Rex unintentionally ruined his friends' breakfast by breaking into their hideout. Cricket recommended the group to eat breakfast at Yum Ta.
Again, Rex went to Yum Ta with Cricket, Skwydd, and Tuck to celebrate their victory against Quarry.