四海一家（每個禮拜一店休，如遇假日順延一天）

Si Hai Yi Jia is a Chinese restaurant in an alley in Songshan District, Taipei, near the Songshan District supervisors' office, serving Beijing and Jingyong fusion cuisine. Dishes such as cold lamb, Beijing roast duck, and scallion pancakes are shared among several diners. Opened in 1970, it takes reservations for parties of eight or more, while smaller groups wait in line on site. The seating area is narrow and long, which is uncomfortable.