CLASSIC FOUR-CHEESE PAN PIZZA WITH PESTO
Omit tomatoes, garlic, salt, pepper, and basil from topping. Process 2 cups basil leaves, 7 tablespoons extra-virgin olive oil, ¼ cup pine nuts, 3 minced garlic cloves, and ½ teaspoon salt in food processor until smooth, scraping down sides of bowl as needed, about 1 minute. Stir in ¼ cup finely grated Parmesan or Pecorino Romano and season with salt and pepper to taste. Spread ½ cup pesto onto partially baked crust in step 8, then sprinkle with mozzarella, followed by 1 cup shredded provolone cheese, ¼ cup crumbled blue cheese, and Parmesan. Continue baking as directed.