In a medium mixing bowl, combine the ground chicken, egg, almond flour, sea salt, black pepper, and dried oregano until just incorporated.
Form the chicken mixture into 1-inch meatballs, ensuring they are tightly packed to hold their shape during cooking.
Heat the olive oil in a large non-stick skillet over medium heat.
Add the meatballs to the skillet and sear for 5 to 6 minutes, turning occasionally until they are golden brown on all sides.
Add the minced garlic to the skillet and sauté for 30 seconds until fragrant, being careful not to burn it.
Pour the marinara sauce over the meatballs, reduce the heat to low, and simmer for 8 to 10 minutes until the chicken is cooked through.
In a separate small pan, flash-sauté the zucchini noodles for 2 minutes until just tender but still firm.
Divide the zucchini noodles into a bowl, top with the meatballs and sauce, and garnish with freshly chopped basil before serving.