Shanghai Street Foods Established in 2015. Shanghainese cuisine is one of eight most famous types of dishes in China. Yaso Tangbao will bring most authentic Shanghainese cuisine dishes New York City. Yaso Tangbao was born as a response to the evolving taste of a centuries old culinary culture, with a parallel mission to satisfy New Yorkers taste buds. Yaso Tangbao will offer affordable, healthy and modern Shanghainese cuisine dishes in a fast casual dining environment comparable to that of other fast casual restaurants chains.