Preheat the oven to 350 degrees F (175 degrees C).
In a large bowl, combine the ground turkey, bread crumbs, Parmesan cheese, garlic powder, onion powder, Italian seasoning, salt, pepper, parsley, and egg. Mix well.
Form the mixture into 1-inch balls and place on a greased baking sheet.
Bake for 25 minutes, or until the meatballs are cooked through.
While the meatballs are baking, heat the spaghetti sauce in a large pot over medium heat.
Once the meatballs are done baking, add them to the sauce and stir to combine.
Simmer for 10 minutes.
Serve over cooked spaghetti.
Interesting Facts
This dish is a great way to use up leftover ground turkey.
You can customize the spices in this dish to your taste.
You can make the meatballs ahead of time and store them in the refrigerator.
You can also freeze the meatballs for up to 3 months.