Step 1

Preheat the broiler.

Step 2

Heat the butter and oil in a large, oven-safe skillet over medium-high heat. Place one flour tortilla in the skillet. Spread a few tablespoons pizza sauce on the tortilla, leaving a little room around the edges. Sprinkle half of the provolone and half of the fontina over the sauce. Sprinkle a third of the mozzarella next, followed by 1 tablespoon Parmesan and 1/2 teaspoon oregano.

Step 3

Top with the second tortilla and press it down gently. Once the underside is perfectly toasted, carefully flip the quesadilla to the other side.

Step 4

Spread a few more tablespoons pizza sauce on the toasted side of the tortilla, being sure to leave a little bit of the edges exposed so it looks like a pizza. Sprinkle with another third of the mozzarella and the remaining provolone, fontina, Parmesan and oregano.

Step 5

Arrange the red bell pepper and red onion on top of the cheeses like you would on a pizza. Do the same with the pepperoni slices and the olives. Top with the remaining mozzarella.

Step 6

Transfer the pan to the broiler and let cook to melt the cheese on top, about 2 minutes. Carefully transfer the pizzadilla to a cutting board using a large spatula or two smaller spatulas.

Step 7

Warm up the remaining pizza sauce and serve in a bowl for dipping. Cut the pizzadilla into wedges and garnish with the torn basil.