Open the tube of mini pizza crusts and separate each one. Using a rolling pin, gently roll them out so the dough is larger and thinned out. Spread a thin layer of pesto into the center of each one and add some mozzarella cheese on top.
Tightly close the dough around the pesto and mozzarella cheese. Place them seam side down on a parchment paper lined baking sheet. Using the palm of your hand, push down on the rolls to flatten them out just a little bit.
Now brush the tops with a little olive oil. Place them into the center rack of the oven for about 20 minutes or until the dough is cooked all the way through. Finally, let them rest for 5 minutes, serve and enjoy.