Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a large bowl, combine ground beef, egg, almond flour, half of the minced garlic, ginger, 1 tablespoon of soy sauce or coconut aminos, sesame oil, and black pepper. Mix well.
Form the mixture into 16 evenly sized meatballs and place them on the prepared baking sheet.
Bake the meatballs for 18-20 minutes or until they are browned and cooked through.
While meatballs are baking, heat olive oil in a large skillet over medium heat.
Add broccoli florets and stir fry until they are bright green and tender-crisp, about 5-7 minutes.
Add the remaining minced garlic to the skillet and cook for another minute.
In a small bowl, whisk together beef broth, remaining soy sauce or coconut aminos, apple cider vinegar, and erythritol. Pour this sauce over the broccoli and cook for an additional 2-3 minutes, allowing the sauce to thicken slightly.
Once the meatballs are done, add them to the skillet with the broccoli and toss everything together until the meatballs are coated in the sauce.
Divide the meatball and broccoli mixture among bowls, garnish with sesame seeds and sliced green onions, and serve hot.