Kujira is one such gem.
Because we always want to try a little bit of everything, our usual state of play is to order loads of starters for the table. Highlights include the okonomiyaki - prawn and shredded vegetables fried into a pancake, served with mayonnaise and a gooey, fried egg on top, and the takoyaki - beautiful pieces of octopus in a wheat batter and fried into little balls, served with flakes of bonito.
And of course, you can't go to a Japanese restaurant without having a bowl of salty, blanched edamame to chew on.
If you plan to head to Kujira for dinner (and I recommend you do!) either get there nice and early to secure a table, or be prepared to wait in line for a seat as this place gets popular, especially on weekends. But it's worth the wait.