On an whim Easter Sunday I grabbed one of my solar cookers and cooked green beans for our contribution to the bigger family Easter celebration. Of course I forgot to take pictures, so I had to "re-enact" the bean cooking inside on the kitchen table lol.
The beans were well cooked in about an hour. Solar cooking is supposed to be a "burn-proof" way of cooking, time will tell of course lol. For the beans I put them in a zip lock bag and then put that inside an oven bag. There is a black mat to really absorb the heat and a mirror to catch the sun. I found some glass casserole dishes with lids to use in this because I'm not crazy about cooking in plastic. It's definitely the most portable of all the solar cookers I have. Their website is http://www.surferchef.com/ if you want more information. This is the Deluxe Solar Cooker System.