Bento is great. Basically, it's origins are Japanese, but it can be used in any part of the world. What is great about it, is that you are preparing your meal for the day, or for the lunch. You bring it to work. You eat it, you wash your container and you bring it back home. It's environmentally friendly.
I can see Bento boxes as a model lifestyle in these days. We can prepare it with Italian food, having different compartments; as an example, some cheeses and bread. There are a thousand ways to do Bento boxes, and that's the great thing about them.