Heat the wok with oil, add the pork and stir-fry over medium heat until half-cooked. Then add onion, garlic, and red pepper and stir-fry until fragrant. Add asparagus, lily bulbs, and seasonings and stir-fry over medium heat until the pork is fully cooked.
Tip:
Stir-fry Lily bulbs lightly at the end in order to keep it in good texture.