Preheat your oven to 400°F and line a rimmed baking sheet with parchment paper.
In a large mixing bowl, combine the ground turkey, egg, almond flour, sea salt, black pepper, garlic powder, and dried oregano.
Using your hands, gently mix the ingredients together until just combined, taking care not to over-compress the meat.
Form the mixture into 1.5-inch meatballs and arrange them evenly on the prepared baking sheet.
Bake for 15-18 minutes, or until the meatballs are golden on the outside and reach an internal temperature of 165°F.
While the meatballs bake, spiralize the zucchini into noodles if not already prepared.
Heat the olive oil in a large skillet over medium heat and sauté the zucchini noodles for 2-3 minutes until they are just tender.
In a separate small saucepan, warm the marinara sauce over low heat.
Toss the baked meatballs in the warmed marinara sauce and serve immediately over the zucchini noodles, garnished with grated parmesan cheese.