Nobu Tokyo bento
Having dinner in Nobu Tokyo is quite expensive, but you can have a REALLY good meal at lunch time for around 20~30 euro (30~40 dollars). We ordered one bento, that turned out to be two, each one of them divided in several compartments with fish, meat and vegetables. Delicious!
Here you can watch a talk given by Masaharu Morimoto, one of the cooks of the Nobu restaurant in New York: