Microwave pepperoni on a microwave safe plate lined with paper towels for 15 seconds or bake for 5 minutes. Dab grease off.
Spread the sauce over the flatbreads, leaving a small border. Sprinkle with parmesan cheese.
Add pepperoni, place two in the enter towards the top. Add olives on top. Lay strips of string cheese over top. Place in the oven and bake for 3-5 minutes.