In a large bowl, combine ground turkey, egg white, almond flour, parsley, garlic powder, onion powder, salt, and pepper.
Form the mixture into 1-inch meatballs, ensuring they are uniform in size for even cooking.
Heat olive oil in a non-stick skillet over medium heat and sear the meatballs until browned on all sides.
Pour the marinara sauce over the meatballs, reduce heat to low, and simmer for 8 to 10 minutes until cooked through.
While meatballs simmer, lightly sauté zucchini noodles in a separate pan for 2 minutes until just tender.
Serve the saucy meatballs over the zucchini noodles and garnish with extra parsley if desired.