This is a mini steamer for the microwave that I picked up at Daiso. It's sold as a steamer for meat buns, but it's just the right size for steaming small amounts of vegetables or dumplings for lunch -- speeds up cook time 50%. You put a tablespoon of water in the bottom, replace the steam tray on the bottom, put the veggies in, then cover (aligning the steam holes to allow venting). Nuke for 1-2 minutes and let it stand for a couple of minutes afterward to steam. It can also be used for storage if you twist the lid so that the steam release holes are not aligned. Blog entry here at Lunch in a Box.