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.
Today was one of these days that my coffee needed a coffee... And I really couldn't make myself cook in the morning. So, the vegetarian bento was made! It's fast, it's simple, and it tasted great. Consider that a fancy salad for lazy days.