Preheat the oven to 500°
Let the pizza dough rest on the counter at least 10 minutes.
In a 12in cast iron skillet, drizzle in the olive oil. Use your fingers to push the dough around the skillet to completely cover the bottom
Pour Alfredo sauce on the dough and use a spoon to spread it close to the edges of the dough.
Top the sauce with shredded mozzarella. Break up the raw sausage into nickel sized pieces and place on top of the cheese.
Place the mushrooms on the pizza as well. Using a spoon, dollop the ricotta all over the pizza and sprinkle the basil over the entire pizza.
Place on the bottom rack of the oven for 15-17 minutes or until the cheese and dough begin to turn golden brown and bubbly.
Let the pizza cool for 2-3 minutes, slice and serve.