1. Heat a heavy skillet over medium heat. Add the olive oil, onion, garlic, and ginger. Cook, stirring frequently until the onions begin to soften. Reduce the heat if the garlic starts to turn golden. You don’t want to over cook this.
2. Add the ground beef to the skillet and cook until no longer pink. Drain well.
3. Return the skillet to the burner and completely stir in the lime juice and hoisin sauce.
4. Add the cabbage to the skillet and cook until crisp tender.
5. Add the peanut butter, if desired, and cilantro.
6. Stir until thoroughly combined.
7. Serve immediately as is or over rice or noodles, soy sauce on the side.