Here is another portable solar oven that lets you cook your meals outside with sunlight. The SunCore Portable Solar Oven also comes with a sundial indicator to let you know how to get the best angle. Its built-in thermometer gives you a better idea how fast your meals will be ready.
The unit lets you cook in any season. To use it, simply release the support legs, unfold reflective panels, add your food to the core, and you are set.