Meatball-Stuffed Crust Pizza Star

Ingredients for 3 servings 1 lb (455 g) ground beef 1 large egg ½ yellow onion, finely diced ½ cup (60 g) bread crumbs ½ cup (55 g) grated parmesan cheese ¼ cup (10 g) fresh parsley, chopped 3 cloves garlic, minced 1 teaspoon salt ½ teaspoon pepper 1 teaspoon dried oregano 1 tablespoon oil, for cooking 11 oz (310 g) pizza dough ½ cup (130 g) marinara sauce 1 cup (100 g) shredded mozzarella cheese olive oil, for brushing Preparation Preheat the oven to 425°F (220°C). In a large bowl, mix the ground beef, egg, onion, bread crumbs, Parmesan, parsley, garlic, salt, pepper, and oregano. Roll the mixture into golf ball-sized meatballs. In a medium cast iron or nonstick skillet, heat oil over medium heat. Working in batches cook the meatballs until browned on all sides, about 5 minutes. Set aside. On a sheet of parchment paper, press the pizza dough into a large circle, about 12 inches (30-cm) in diameter. Cut 8 evenly spaced 2-inch (5-cm) slits on the edge of the dough. Place one meatball o