Now that I have become infected with the Bento virus everything looks like it is Bento-worthy to me. These ceramic crocks are made by Corning Ware and sold at Target. I recieved one as a teacher gift and the other I purchased for about $7.00 USD. They are oven safe, microwave safe, dishwasher safe, and the lids are vented for the microwave. What more could you want. I am sure you could fill them with a cold salad but I am thinking soup in the winter time. All you need to do is micowave them in the break room at work.