Heat the cooking oil in a wok or frying pan. Add the chicken strips and cook until the edges are lightly browned.
Toss in the garlic and onion. Stir fry for half a minute.
Add the julienned carrot, broccoli and cauliflower. Add the pork slices too, if using. Sprinkle with salt and pepper. Stir fry for another half a minute.
Throw in the drained hofan.
Stir together the broth, soy sauce, oyster sauce and hoisin sauce. Add to the noodles and stir. The noodles will turn opaque. Cook until the noodles have soaked up the liquid. The mixture will be quite dry but the noodles will be glistening with thickened sauce.
Taste. Add more salt and pepper, if needed.
Drizzle in the sesame seed oil. Give the stir fried noodles a final toss. Serve at once.