Preheat oven to 400°F In a small bowl, mix pepperoni, mozzarella and pizza sauce. Set aside.
Roll out pastry dough into two 4x12-inch strips. On the bottom length of each strip of dough, place 1 small teaspoon of filling at 1/2" intervals.
Brush egg wash between filling spaces and around half of the outer edges. (keep in mind, egg wash will stick to dough, but not to itself). Fold top over and press to seal between each ravioli and on outer edges. Brush with melted butter.
Using a pizza cutter or knife, cut between the raviolis. Place onto a baking sheet that has been lined with parchment paper and lightly sprayed with non-stick cooking spray. Bake for 15-20 minutes. Let cool slightly as filling will be hot!