Preheat oven to 425F and grease your cast iron pan with olive oil or butter. (Or you could save the grease from the meat you cooked earlier and use that to grease your pan.)
Divide the dough in half. You can either make two pizza's at once or freeze the other half to enjoy another day.
Roll out the dough into a 12-14" circle, depending on how large your cast iron skillet is. I like to roll out the dough slightly larger than my pan to allow about a 1/2" of dough up the side of the pan.
Gently place the rolled out dough into the prepared skillet, stretching it out as needed to fill the pan.
Top with sauce, shredded mozzarella cheese, meat and any other veggie toppings you'd like.
Bake for 25 minutes or until the crust starts to brown slightly.
Optional, you can broil the pizza for about 2 minutes after it's finished cooking. Watch it closely so it doesn't burn.
Allow the pizza to cool for a few minutes in the pan. If you'd like you can transfer the pizza to a cutting board before slicing it.