PREHEAT oven to 375° F.
MIX all cheeses, parsley, egg, salt and pepper in a bowl; reserve a tablespoon of egg to brush on top of calzones before baking.
REMOVE dough from package, unroll and lay on a floured cutting board. Roll out to approximately 1/8” thick.
USING a 4” round mold (wide mouth coffee cup, ramekin or small bowl), cut 12 discs of dough.
PUT approximately 3/4 tablespoon of filling in the center of each disc of dough; add one layer of pepperoni; fold both sides of dough inward over filling and pinch together to seal the edge of the calzone.
PLACE calzones on a cookie sheet, sprayed with nonstick cooking spray and brush the top of each with the remaining beaten egg.
BAKE for 13-15 minutes.
SERVE with warmed meat sauce for dipping.
Cook’s Tip: Other additions to filling can be spinach, beef, sausage, sun-dried tomatoes, olives or basil.