Ben-To – 01

「ネバれ、納豆オクラ丼ぶっかけチーズトッピング弁当 440kcal」 (Nebare, Nattō Okura Don Bukkake Chīzu Toppingu Bentō 440 kcal)
“Sticky, Natto Okra Rice Bowl with Cheese Topping Bento 440kcal”

So think Dragon Ball Tournaments, but held in a supermarket, where the prize is a half-off bento. Now you’ve got the gist of this aptly named anime, “Ben-to.