Heat the groundnut oil in a wok, and when hot, stir-fry the ginger, chiles, mushrooms and turmeric for a few seconds. Add the bacon, and cook for less than 1 minute. Add the red bell pepper, carrots, and bean sprouts and cook for another minute, then add the cooked chicken, and stir well to combine.
Add the noodles, and stir-fry well, for 2 minutes, then season with the chiles, soy sauce, oyster sauce and vinegar. Stir to combine.
Add in the beaten egg, stirring gently until the egg is cooked through, less than 1 minute. Then, season with the sesame oil. Sprinkle over the spring onions, and serve immediately.
You could also add 6 ounces raw Tiger prawns (shrimp), shelled, and deveined. Add them to the pan, and cook for 1 minute, or until they start to turn pink, right before you cook the bacon.