Pronounced "shee-ahn," this New York City mini chain garnered a cult following after Anthony Bourdain declared it one of his local favorites. The ubiquitous fast-casual specializes in northwestern Chinese dishes, most notably, hand-ripped noodles and burgers in flatbread-like buns. Don't be fooled by the noodles' to-go serving containers -- they're best enjoyed on the spot when they're still hot and fresh from the kitchen.