Stuffed Pizza Crust

Name: Stuffed Pizza Crust
Ingredients: One 1-pound loaf store-bought frozen bread dough, thawed and left to rise according to the package instructions; All-purpose flour, for dusting; 2 teaspoons olive oil, plus more for drizzling; Large pinch kosher salt; Arrabbiata Sauce, recipe follows, cooled; 2 tablespoons grated Parmesan; 1/4 cup shredded mozzarella; 14 slices pepperoni, chopped; 10 pieces string cheese, each cut in half to make 2 shorter pieces; 1 egg whisked with 1 teaspoon water; 4 Roma tomatoes, sliced; Fresh basil leaves, for serving; 2 tablespoons olive oil; 1 tablespoon crushed red pepper flakes; 1 small to medium onion, chopped (about 1/2 cup); 4 cloves garlic, minced; 1/2 cup white wine; Two 15-ounce cans crushed tomatoes; 1 tablespoon Italian seasoning; Pinch sugar; Kosher salt