Begin by heating a large skillet over medium heat. Warm one flour tortilla in the skillet for about 30 seconds, making it pliable and easy to work with.

Sprinkle half a cup of shredded mozzarella cheese evenly across the warmed tortilla. Top it with another tortilla, then press down gently with a spatula. Cook for about 2-4 minutes, flipping halfway through.

Spread a few tablespoons of pizza sauce over the top tortilla. Add the remaining mozzarella cheese and layer with pepperoni slices. Sprinkle sliced black olives if desired.

Transfer the assembled pizzadilla to a baking sheet and place it in a preheated oven at 400°F (200°C). Bake for about 5-10 minutes until the cheese is bubbly and golden.

Remove the Pepperoni Pizzadillas from the oven, let them cool for a minute, then slice into wedges for easy serving.