Try a Japanese-style faux bento box

We stopped using disposable plastic bags for packing lunches a couple of years ago, opting instead for these Japanese-style faux bento boxes. They typically come with two stacking containers, and one of the containers is usually divided into two compartments. The Bentgo is just such a lunch box. It comes with an elastic band to keep the containers stacked and it also includes a knife, fork, and spoon. Amazon has it on sale right now for $14.99.