Place pizza stone in the oven. Preheat oven and the stone to 500 degrees.
On a lightly floured surface, roll dough into circles, about 6 inches in diameter. Place each round on a separate piece of parchment paper.
Place your choice of ingredients on one half the dough, leaving about 1/4 inch on the rim of the circle clean for the seal.
Brush water lightly around the edge and fold over, crimping with a fork to seal.
Then, lightly brush the top with olive oil and sprinkle with Parmesan.
Lift the calzone using the parchment paper and place (paper and all) directly on the pizza stone.
Cook time will vary based on the amount of stuffing ingredients but check each calzone beginning at 5 minutes.