1. Remove the outer leaves from the cabbage, core it, and slice it into thin strips. Dice the onion and mince the garlic.

2. Heat the olive oil in a large skillet over medium heat. Add the ground beef and cook until fully browned, breaking it apart as it cooks. Transfer the cooked beef to a plate and set aside.

3. In the same skillet, add the diced onion and cook for 3–4 minutes until softened. Stir in the minced garlic and cook for 30 seconds until fragrant.

4. Add the sliced cabbage to the skillet. Sprinkle in the salt, black pepper, smoked paprika, and red pepper flakes. Cook for 8–10 minutes, stirring occasionally, until the cabbage softens and begins to caramelize.

5. Return the cooked ground beef to the skillet. Pour in the apple cider vinegar and stir to combine. Cook for an additional 2–3 minutes to allow the flavors to meld. Serve warm.