Preheat your oven to 400°F.
In a bowl, combine the lean ground turkey, whole wheat breadcrumbs, egg white, chopped fresh parsley, and minced garlic. Drizzle in the olive oil and season with salt and pepper as desired.
Mix the ingredients until just combined, being careful not to overwork the mixture to keep the meatballs tender.
Form the mixture into small meatballs, about 1 to 1.5 inches in diameter, and place them on a lightly greased baking sheet.
Bake the meatballs in the preheated oven for 15-18 minutes, or until they are cooked through and lightly browned on the outside.
While the meatballs are baking, cook the whole wheat spaghetti according to the package instructions until al dente. Drain and set aside.
In a small saucepan, heat the fresh marinara (if desired, you can add a little garlic or basil for extra flavor) until warm.
Serve the turkey meatballs over a bed of whole wheat spaghetti, and top with the warm marinara sauce.
Garnish with additional fresh parsley if desired, and enjoy your balanced, flavorful meal.