In a medium bowl, combine the ground beef chuck, egg, almond flour, sea salt, black pepper, dried oregano, and garlic powder.
Gently mix the ingredients with your hands until just combined, being careful not to overwork the meat, then form into 1-inch meatballs.
Heat the olive oil in a large skillet over medium heat.
Add the meatballs to the skillet and brown them on all sides for approximately 5-6 minutes.
Pour the tomato puree over the meatballs and reduce the heat to low.
Cover the skillet and simmer for 10 minutes until the meatballs are cooked through and the sauce has thickened slightly.
Serve the meatballs and sauce over fresh zucchini noodles.