The Ritz conjures up an image of expense and luxury and while their Japanese restaurant, Hinokizaka, is not exactly cheap, it's also far from outrageous. In beautiful surroundings, served by ladies in kimono and with amazing views over Akasaka and beyond, Hinokizaka is somewhat of a find.
For around 5,000 yen at lunch you can order their bento box. There are more expensive options available but the quality and amount of food is superb. It's ideally pitched for a business lunch. The food and atmosphere is high-level but you will not leave feeling heavy - perfect if you have to entertain the same evening!