Growing up outside of Tokyo, Chef Kenji Miyaishi’s mother used to send him off with bento boxes of onigiri rice balls, karaage fried chicken, tamago-yaki egg omelets and vegetables from her garden.

Bento boxes bring class to eating. Take away the traditional flat plate, where all the food runs together. Take away the multiple plates used for appetizer, dinner and dessert. Use a bento box instead ...