The Doors, 10cc and exposed brickwork may not exactly conjure up the hutong of Běijīng, but the pan fried jiǎozi dumplings are spot on, and the soup noodles (tāngmiàn) are a steaming bundle of appetising flavour (veggies can aim their chopsticks at the fried tofu and Chinese mushroom version). If you want things spicy, ask for chilli sauce.
The set lunch of one drink and a main is £9.35 (including service). There's another branch at Brixton Village.