Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Grate the zucchini using a box grater and place it in a clean kitchen towel, squeezing firmly to remove as much moisture as possible.
In a large mixing bowl, combine the ground turkey, squeezed zucchini, almond flour, egg, garlic powder, onion powder, sea salt, black pepper, and chopped parsley.
Mix gently with your hands until just combined, being careful not to overwork the meat.
Roll the mixture into 12 even meatballs and place them on the prepared baking sheet.
Lightly brush or spray the meatballs with the extra virgin olive oil to ensure a crispy exterior.
Bake for 18 to 20 minutes, or until the meatballs are golden brown and reach an internal temperature of 165°F.
While the meatballs bake, warm the marinara sauce in a small saucepan over low heat.
Serve the crispy meatballs over the warm sauce and enjoy immediately.