Pei Wei Asian Diner, LLC, doing business as Pei Wei Asian Kitchen, (/ˌpeɪ ˈweɪ/)) is an American restaurant chain serving Pan Asian fare, operating in at 119 locations in the United States. Pei Wei's dishes are made to order in an open concept kitchen using cooking methods like wok firing. The restaurant offers guest customization that includes vegetarian and gluten-free options.