Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a large bowl, combine the lean ground turkey, egg, almond flour, grated Parmesan, minced garlic, Italian seasoning, salt, and pepper.
Mix all ingredients until well incorporated, being careful not to overwork the meat.
Form the mixture into small meatballs, about 1 to 1.5 inches in diameter, and place them on the prepared baking sheet.
Bake in the preheated oven for 15-20 minutes, or until cooked through and lightly browned.
While the meatballs are baking, prepare the zucchini noodles using a spiralizer or vegetable peeler. Lightly sauté the zucchini noodles in a non-stick skillet over medium heat for 2-3 minutes, just to warm them through.
Warm the marinara sauce in a small saucepan over low heat.
Plate the zucchini noodles, top with the baked turkey meatballs, and drizzle with the warm marinara sauce.
Serve immediately and enjoy your lean, protein-packed meal.