Chicken Parmesan Meatballs

Name: Chicken Parmesan Meatballs
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: American
Ingredients: 1 large egg, beaten; 0.75 cup grated Parmesan cheese; 1.75 cups Italian-style panko bread crumbs, divided; 1 teaspoon garlic powder; 1 teaspoon Italian seasoning; 0.75 teaspoon crushed red pepper flakes; 0.5 teaspoon salt; 0.5 teaspoon freshly ground black pepper; 1.5 pounds ground chicken; 2 tablespoons olive oil, divided; 2 tablespoons unsalted butter, divided; 1 (28 ounce) jar marinara sauce; 0.5 cup shredded mozzarella cheese; 2 tablespoons snipped fresh parsley