How do you keep pizza from sticking to a cast iron skillet?

We lightly grease the cast iron with canolaoil. Roll out the pizza crust on a board sprinkled with corn meal, and then transfer it to the cast iron pan. Top the pizza with all the good stuff. Cook at a minimum of 475 degrees. Depending on how thick the crust is, it will be ready in 11-15 minutes. For a crisper crust, start on a low rack for about 7-8 minutes, then move to the higher rack to brown the top, usually 3–4 minutes for a thinner crust.