Cut the beef into bite-sized pieces and marinate it.
Prepare the vegetables such as mung bean sprouts, bok choy, cabbage, onion, chili peppers, mushrooms, etc.
Add cooking oil to a pan and stir-fry the Mala Xiang Guo sauce to release its aroma.
Add the beef first and stir-fry over high heat.
When the beef is half cooked, add all the vegetables, tofu, etc., and stir-fry together.
Add more sauce and season as needed to taste.
Once all ingredients are cooked, drizzle with sesame oil to finish.
Plate and top with cilantro, peanuts, or other desired toppings.