Ancient Japanese theatre goers did not snack but enjoyed elegantly presented bento boxes between acts.
The word makuno-uchi bento ("between-act bento"), dates back to the Edo period (1603 to 1867), when these special bento boxes were sold to theatre-goers during the intermissions of Noh and Kobuki performances.
This bento consists mostly of rice along with fish, meat, pickles, eggs, vegetables, and an umeboshi (a salt pickled plum).
Makunouchi bento has since evolved into today’s ekiben, bento boxes sold at train stations and convenience stores.