In a large bowl combine the turkey, breadcrumbs, Parmesan cheese, garlic, parsley, basil, onion salt, pepper and egg.
Mix all ingredients together and using your hands form into equal size meatballs (16-20).
In a large non-stick pan, heat the olive oil on medium heat and add the meatballs. Cook turning occasionally for 8-10 minutes, or until browned on all sides.
Add the jar of tomato sauce and cook for 3-5 minutes until the meatballs are cooked through.
Serve with your favorite pasta and additional parmesan cheese. Enjoy.