Individual Tri-Color Salad Pizzas - Ellie Krieger

Ingredients

• Cooking spray
• 1 ounce Parmesan cheese (1/3 cup grated) *
• 2 ounces part-skim mozzarella cheese *
• ¾ pound store-bought whole-wheat pizza dough, thawed if frozen
• 1 tablespoon cornmeal
• 3 tablespoons extra-virgin olive oil
• 1 cup part-skim ricotta cheese *
• ¼ teaspoon freshly ground black pepper
• 1 small head radicchio
• 2 heads endive
• 1 cup grape tomatoes
• 4 cups baby arugula leaves
• 1 tablespoon balsamic vinegar