Bento box lunches are easy to prep ahead and customize with your favorite flavorful ingredients. Read on for seven secrets on how to build a better bento box, plus recipes to get you started. Opt for store-bought shortcutsJust as a good outfit is elevated to rave-worthy territory with a great pair of shoes, a good bento box lunch gets even better when you add the right accessories. A pretty — and pretty delicious — lunch isn’t all you can look forward to with your adult bento box. DIY Bento Box IdeasBy now you know that bento boxes can be fun, fresh and filling for adults.