In a medium bowl, add cream cheese, ricotta, parmesan, 1 cup of mozzarella, basil, oregano and garlic powder. Stir until well combined. Add sausage to cheese mix and stir until combined. Pour dip back into cast iron skillet and spread into an even layer. Top with pizza sauce and spread into an even layer. Sprinkle with remaining cup of mozzarella and arrange pepperoni on top.