Preheat your oven to 400°F and line a baking sheet with parchment paper.
In a large mixing bowl, combine the ground beef, egg, almond flour, sea salt, black pepper, garlic powder, and dried oregano.
Mix the ingredients by hand until just combined, being careful not to overwork the meat, then roll into 1-inch meatballs.
Place the meatballs on the prepared baking sheet and bake for 15-18 minutes until browned and cooked through.
While the meatballs are baking, use a spiralizer to create zucchini noodles and set them aside.
Heat the olive oil in a large skillet over medium heat and sauté the zucchini noodles for 2-3 minutes until slightly softened but still crisp.
Warm the marinara sauce in a small saucepan over low heat until simmering.
Toss the cooked meatballs gently in the warm marinara sauce to coat them thoroughly.
Plate the zucchini noodles, top with the meatballs and sauce, and garnish with chopped fresh parsley.