Steam the diced sweet potato in a microwave-safe bowl with a splash of water for 3 minutes until tender.
Heat the avocado oil in a large non-stick skillet over medium-high heat.
Add the diced yellow onion to the skillet and sauté for 2-3 minutes until softened and translucent.
Add the extra lean ground beef to the pan, breaking it into small crumbles with a spatula.
Cook the beef until it is completely browned and no pink remains, then drain any excess liquid.
Sprinkle the garlic powder, ground ginger, sea salt, and black pepper over the beef and stir to combine.
In a small bowl, whisk together the coconut aminos, rice vinegar, and honey to create the sweet and sour sauce.
Pour the sauce over the beef mixture and simmer for 1 minute until the meat is well-coated and glazed.
Fold in the cooked quinoa and steamed sweet potatoes, tossing everything together until heated through.
Transfer the mixture to a bowl and serve immediately while hot.