Preheat oven to 425°F. Line a baking sheet with parchment paper. 

 Transfer dough to floured surface and divide into 8 pieces. With a rolling pin, roll out each piece into a thin rectangle, then with a glass cup, cut into 4-inch round circles. You should have between 15 and 20 circles. 

 Place a spoonful of marinara, cheese and vegetable of choice in the center of the dough circles. Fold over to make a half moon shape. Using a fork, lightly crimp edges to seal. Place on prepared baking sheet or plate.

Brush egg wash over top and sprinkle with sesame seeds. With a sharp knife, pierce a small hole/vent for steam to escape, in the tops of each pastry. 

Bake in a 425°F oven for 25 minutes until golden brown. Serve with extra marinara sauce for dipping. 

*Choice of fillings: Olives, mushroom, onion, corn, potato, jalapenos, pineapple, tomatoes, eggplant, tuna, or whatever you prefer.