Preheat oven to 375°F.
Lightly flour work surface and a rolling pin. Roll pizza crust into a 12x16 inch rectangle.
Spread 3/4 cup pizza sauce over pizza crust, leaving a 1-inch border on both sides and top edge. Sprinkle 1 teaspoon Italian seasoning evenly over the sauce.
Sprinkle mozzarella (2 cups) and Parmesan cheese (1/3 cup) evenly over sauce.
Sprinkle chopped pepperoni (3/4 cup) over cheese.
Begin rolling tightly upward, away from you, starting at the long side of the crust closest to you.
Cut the roll into 12 individual pieces, using a serrated knife and a gentle sawing motion.
Arrange the cut rolls evenly, in 3 rows, 2 inches apart. Sprinkle with a generous pinch of Parmesan on top of each roll.
Bake in preheated oven for 20-25 minutes or until dough is golden.
Pour the remaining pizza sauce into a microwave-safe dish and warm through. Arrange pizza pinwheels onto a serving platter and serve with warmed pizza sauce.