Solar Oven

I am obliged to discuss heat flow in my project, which is to make a solar oven. how is relevant evergy thermal solar oven. I am the oven the pizza box.

pizza box is not a good idea for a solar oven.
1. Paper or cardboard is a poor heat conductor
2. Paper catch fire after it is heated to over 451 F
(Remember, Fahrenheit 451 by Ray Bradbury?)

Use a tin can and a solar collector. Solar can be a convex mirror or lens.