Misato is an amazing little Japanese restaurant in Chinatown, serving big plates of chicken katsu and a selection of bento boxes. This one, including 8 pieces of salmon sashimi, 2 rolls, 2 warm pork dumplings, fried chicken, seaweed salad and rice was only £8.50. Throw in some warm sake to share and you can eat your fill (or more than) for a tenner. It's usually packed and staff are run off their feet, but it's worth joining the queue for one of the best lunches in central London.