01 - In a large bowl, gently combine ground turkey, egg, breadcrumbs, Parmesan, parsley, garlic, oregano, salt, pepper, and milk without overmixing.
02 - Shape the mixture into 16 meatballs, approximately 1.5 tablespoons each.
03 - Heat 2 tablespoons olive oil in a large skillet over medium heat. Brown meatballs on all sides for 5 to 7 minutes. Remove and set aside.
04 - In the same skillet, add 1 tablespoon olive oil. Sauté onion over medium heat until softened, about 4 minutes. Add garlic and cook for 1 minute.
05 - Stir in crushed tomatoes, basil, oregano, sugar, salt, and optional chili flakes. Bring sauce to a simmer.
06 - Nestle the browned meatballs into the sauce. Cover and simmer on low heat for 20 minutes until fully cooked.
07 - Top with fresh basil and serve hot over pasta, rice, or with crusty bread.