Yumenoki doesn’t go in for flash, big-city minimalism, but its dressed-down canteen surrounds & lack of ceremony allow it to deliver genuine, expertly made sushi at very realistic prices. The menu will have Japanese fans purring, with everything from gyoza dumplings to udon noodles & beef teriyaki on offer – although raw morsels are undoubtedly the star attractions. The sea-urchin nigiri, Californian maki sets & squid sashimi are all worth sampling, or you can put yourself in the chefs’ hands with a 20-piece sharing platter for £30. Meanwhile, those who daren’t leave their desks for too long can take advantage of the superb, eight-piece bento boxes (£8). Flasks of hot & cold saké, potent shochu & Asahi beer all present plenty of opportunities for some native drinking.