A cluster of waving Lucky Cats crowd by the kitchen, vying for space, as you will too in this lively Grosvenor Street eatery. Even if you're feeling lucky, be sure to book ahead to stake your claim. Plates of lightly golden tempura - the house speciality - are hustled to tables, alongside sushi platters of fish, prawns and plump scallops, and bowls of sashimi draped over ice. Cubes of agedashi tofu, in soy and ginger, have a delicately fried skin, while silky-smooth inside. Sizeable and saucy, the teriyaki chicken hits the spot, too.