Prepare Classic Tomato Sauce according to the recipe directions.
In a mixing bowl, combine ground turkey, breadcrumbs, Parmesan cheese, egg, oregano, garlic, and pepper. Divide the mixture evenly and form into 6 meatballs.
Add meatballs to the prepared tomato sauce, cover, and bring up to a simmer. Reduce to medium heat and let cook for 20 minutes, until meatballs are cooked through.
Meanwhile, cook spaghetti according to the package directions. Drain well before serving, and top with the meatballs and sauce.
Notes
To make this recipe gluten-free, use gluten-free bread crumbs and serve over zucchini noodles (1 medium zucchini per serving). Zucchini noodles also reduce the recipe by 150 calories!