1. Heat a large skillet over medium heat and add a drizzle of olive oil.
2. Place one tortilla in the skillet and spread 1/4 cup of pizza sauce evenly over it.
3. Sprinkle 1/2 cup of mozzarella cheese over the sauce, followed by 1/4 cup of sliced pepperoni, olives, and bell peppers.
4. Sprinkle a pinch of oregano and garlic powder for extra flavor.
5. Place another tortilla on top and gently press down.
6. Cook for about 3-4 minutes, until the bottom tortilla is golden brown and the cheese begins to melt.
7. Carefully flip the quesadilla using a spatula, and cook for another 3-4 minutes.
8. Once both sides are crispy and the cheese is fully melted, remove from the skillet.
9. Repeat with the remaining ingredients to make additional quesadillas.
10. Let the quesadillas cool for a minute before slicing into wedges. Serve with extra pizza sauce for dipping.

Remember, the key to a perfect quesadilla is in that golden, crispy tortilla. Keep an eye on the heat to prevent burning, and don’t be afraid to experiment with different fillings!