Italian Pesto Pizzas

Ingredients

• 4 whole wheat pita or flat breads
• 1/4 cup prepared pesto
• 2 cups shredded part-skim mozzarella cheese
• 2 cups fresh baby spinach
• 1/2 cup sliced fresh mushrooms
• 1/2 cup chopped sweet yellow pepper
• 1 plum tomato, halved and sliced
• 1/4 cup chopped red onion
• 1/4 cup grated Parmesan cheese
• 2 tablespoons sliced ripe olives, optional
• 1/4 teaspoon crushed red pepper flakes
• 2 fresh basil leaves, thinly sliced