Japanese food in Japan is so not the chicken teriyaki or California rolls that are often passed off as representational in the west.
A Japanese meal it is as much an aesthetic experience as something to eat. Tiny portions of one or all of a simmered, a deep fried, a grilled, a steamed, or a vinegared dish, served with rice, miso soup, and pickles all usually based on seasonal ingredients. I always leave a Japanese meal satisfied, but never over stuffed.
Below the lunch set (“runchi seto”) is presented in a cube shaped lacquer jewelry box at the Cube Zen restaurant in (where else) Omotesando.