Preheat oven to 450 degrees F.
Cover pizzas with cheese, 1 sack per shell. To each pizza, add about 1/2 teaspoon each of oregano, red pepper flakes and garlic powder. Bake until cheese is brown and bubbly, 8-10 minutes.
Grind olives in food processor.
Using a cake spatula or a rubber spatula, spread olives onto hot pizzas fresh from the oven, leaving a 4 inch wide circular space at the center of the pizza. Add roasted red peppers to the center of each pizza. Finished pizzas should look like vinyl records.
Recipe courtesy of Rachael Ray