In a large mixing bowl, combine the ground chicken, egg, almond flour, lemon zest, chopped parsley, dried oregano, minced garlic, sea salt, and black pepper.
Mix the ingredients gently by hand until just combined, taking care not to overwork the meat, and form into 6 to 8 uniform meatballs.
Heat the olive oil in a large non-stick skillet over medium heat.
Place the meatballs in the skillet and sear for 3-4 minutes per side until a golden-brown crust forms.
Pour the marinara sauce over the meatballs and reduce the heat to low.
Cover the skillet with a lid and simmer for 5-7 minutes, or until the meatballs are cooked through to an internal temperature of 165°F.
While the meatballs simmer, lightly sauté the zucchini noodles in a separate pan for 2 minutes or serve them raw for a refreshing crunch.
Plate the zucchini noodles and top with the meatballs and extra sauce from the pan.