Place parchment paper over your baking sheet
Preheat your oven to 375 degrees
Open 2 refrigerated crescent roll tubes
Set out crescent roll triangles in a circle - they should overlap each other and the pointed side should be on the outside of the circle
Sprinkle most of the mozzarella cheese on the inside (wide portion) circle of crescent dough - reserve some cheese to go on top of the pepperoni slices
Add pepperoni slices on top of the mozzarella cheese
Add a little bit more of mozzarella cheese over the pepperoni
Fold the pointed edge of the cresenct roll over the filling and tuck the point under the ring
Rub some olive oil or melted butter over the top of the ring and sprinkle on Parmesan cheese
Bake at 375 degrees for 20-25 minutes or until dough is fully cooked through
Pull out of the oven and let cool a little
Meanwhile heat the pizza sauce in a saucepan until warm
Transfer the pizza ring onto a large plater
Place the sauce into a bowl and put the bowl in the middle of the ring
Slice the Cresent Ring
Serve with sauce for dipping