Cook the noodles according to packet instructions, run under cold water and set aside. The noodles should be a little underdone, as the stir frying process will cook them further. (Note 4)
Combine the spice mix ingredients in a small bowl.
Mix the sauce ingredients in another small bowl.
Place a wok or large frying pan on a medium to high heat and ½ tablespoon of the oil.
Add the egg when the oil is hot. Wait a few seconds for it to begin to cook, scramble using chopsticks or a spatula and remove from the pan and set aside.
Increase the heat of the pan, pour in half of the remaining oil, add the chicken pieces and fry for a few minutes until lightly browned.
Add the prawns/shrimp and cook for another 1-2 minutes until opaque. Then remove from the pan and set aside. (Note 7)
Increase the heat of the pan, add the remaining oil and add the onions and cook for a few minutes until translucent.
Add the white parts of the spring onions/scallions, carrot and cabbage to the pan and cook for a few minutes until tender.
Reduce the heat of the pan to medium, add the garlic and cook for 1 minute until fragrant. Then stir in the spice mix.
Add the noodles and toss until they become hot.
Pour on the sauce, add the cooked chicken, prawns/shrimp and scrambled egg and toss everything together.
Serve immediately, topped with the green parts of the spring onions/scallions.