Preheat oven to 425℉.
Using a wad of paper towels, coat the bottom and sides of the skillet with 1-2 Tablespoons of olive oil.
Start with a few tablespoons and start to sprinkle enough corn meal around the bottom and sides of the pan to completely cover it. This will prevent the pizza from sticking to the pan when removing it.
Take the dough out of the bowl and place onto a very lightly oiled surface and knead the dough for a minute or two until smooth.
Place the dough in the center of the skillet.
Using the palm of your hand or your fingers, press the dough down into a large flat disc stretching it out until you have covered most of the bottom of the pan. Working wth your fingers, keep pressing the dough in the pan until it completely covers the bottom of the pan and half way up the sides. Sometimes the dough likes to spring away from the sides. That is totally normal. Cover the pan with a clean kitchen towel and let the dough rest in the pan for 10-15 minutes. Repeat the process until the dough stays in place. Cover with the same towel and let it sit in a warm place for 20-30 minutes.
Remove the towel and prick the entire crust lightly with the tines of a fork. Parbake the crust for no longer than 4 minutes. Remove the pan from the oven and start the assembly of the pizza.
Layer one package of the thinly sliced cheese over the crust overlapping each slice leaving a ½-inch edge around the perimeter. Layer the second package of cheese over the first layer.
Press the sausage in a very thin layer and add it on top of the cheese all the way around. No need to precook the sausage as it will cook through in the high heat.
Layer the pepperoni slices on top of the sausage.
Add the sauce on top of the pepperoni.
Sprinkle freshly grated Parmesan cheese on top (optional).
Bake for 40-50 minutes or until pizza starts to slightly bubble and the crust is golden brown. Oven temperatures vary so you may want to check the pizza at 35 minutes.
Remove the pizza from the oven and let it rest in the pan for 10 minutes.
Slide the pizza out of the pan onto a large cutting board.
Let the pizza rest for a few more minutes before slicing.
Garnish with fresh basil before serving (optional).