Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Grate the zucchini and carrots using the fine side of a box grater to ensure they are small enough to 'hide' in the meat.
Place the grated zucchini in a clean kitchen towel or paper towel and squeeze firmly to remove as much excess moisture as possible.
In a large mixing bowl, combine the ground beef, squeezed zucchini, grated carrots, almond flour, garlic powder, onion powder, sea salt, and black pepper.
Using your hands, gently mix the ingredients together until the vegetables and seasonings are evenly distributed, being careful not to overwork the meat.
Scoop about 1.5 tablespoons of the mixture at a time and roll into small, uniform meatballs, placing them on the prepared baking sheet.
Lightly brush the tops of the meatballs with the extra virgin olive oil to help them brown.
Bake for 15 to 18 minutes, or until the internal temperature reaches 160°F and the exteriors are slightly golden.
Remove from the oven and let the meatballs rest for 5 minutes before serving to lock in the juices.