In a large skillet, heat the cooking fat over medium-high. Add the ground beef, breaking it apart with a wooden spoon and cooking for 3 to 4 minutes.
Add the onion, sweet potato, apple, pecans, and spices. Sauté until the beef is fully cooked and sweet potatoes are tender.
Pour in the juice & apple cider vinegar, and add the spinach. Stir to scrape any browned bits off the bottom of the pan. Cook until the spinach is wilted, just a few minutes.
Serve hot with a fried egg on top, or all on its own!
