One Bento, Side dish, Snack, and Soup recipe with Arugula, Dried onion, Egg yolk, and Garlic for Lactose-free diet

Marinated beef and pasta bento

Bento is not only rice, but also other ingredients, like... pasta. This recipe came to life when I had some uncooked beef left-overs and just wondered what to do with them. Cooking them as a part of bento was a great idea!