Marinate the pork before stir-frying: Combine the sliced pork with soy sauce, oyster sauce, sesame oil, and cornstarch. Mix well. Cut the Chinese broccoli into bite-sized pieces and blanch until just tender. Mince the garlic. Crack 1 or 2 eggs, as you prefer. Toss the wide rice noodles with dark soy sauce.

Heat a wok or large skillet over medium-high heat and add enough vegetable oil to coat the bottom. When the oil is hot, add the minced garlic and stir-fry until fragrant. Add the marinated pork and stir-fry until nearly cooked through, then add the Chinese broccoli and stir-fry together.

Add the noodles to the pan and stir-fry to combine. Season with fish sauce and black pepper. Crack the egg into the pan and stir-fry everything together until the egg is cooked and everything is well mixed.

Transfer to a plate, sprinkle with black pepper, and serve.