Here is a portable grill that you can use outside with sunlight to cook your food in minutes with no electricity, battery, or any other fuel source. This portable solar grill has a 304 stainless steel and borosilicate glass construction. It can reach temperatures up to 350C in the sun.
The vacuum tube measures 80cm with an inner diameter of 4.7cm. This solar grill is easy to set up and carry around. Costs under $130 at this time.