Begin by heating a large non-stick skillet over medium heat for about 2 minutes. Add 1 tablespoon of olive oil or butter to the skillet, allowing it to melt and coat the surface evenly.

Lay a flour tortilla flat on a clean surface. On one half of the tortilla, sprinkle a generous layer of mozzarella cheese. Then, add a handful of pepperoni slices.

Carefully fold the tortilla in half over the fillings, pressing down gently with your hands to seal everything inside.

Place the folded tortilla in the preheated skillet and cook for about 2–3 minutes on the first side. Press down gently with a spatula.

Flip the quesadilla over using the spatula and cook for an additional 2–3 minutes until golden brown and crispy on both sides.

Once cooked, carefully transfer your pepperoni pizza quesadilla to a cutting board. Allow it to rest for a minute, then slice it into wedges for easy serving.