Tuna paste is ridiculously easy to prepare and makes a great no cooking bento, cutting the preparation time to less than 20 minutes, including rice cooking time! Now, that's what I would call cooking on the go! You can also use the tuna paste for a great tasting onigiri or sushi.
Give yourself an oriental, savory feast with this simple, yet very spectacular dish. Simple, tasty, and doesn't require lots of ingredients, which is a perfect idea for a nice, cozy evening.