One Appetizer, Base ingredient, Bento, Drink, Side dish, and Snack recipe with Arugula, Dried onion, and Red chili peppers for No eggs 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!