Bake the French fries according to the package directions.
Once baked, remove the French fries and reduce oven temperature to 350°F.
Toss the French fries in a large mixing bowl with the sliced pepperoni, Italian seasoning and half of the mozzarella cheese.
Transfer the French fry mixture onto a large oven-safe platter. Top with remaining mozzarella cheese. (Tip: You can use the same baking sheet you used for the fries!)
Place platter in the 350°F oven for 4-5 minutes, or until cheese has fully melted.
Serve with pizza sauce on the side for dipping.
{Optional} Sprinkle with chopped fresh parsley before serving.