Cook spaghetti as directed on package, al dente, drain, rinse in cold water, add a few drops oil and mix to keep from sticking. Set aside.
Slice steak very thin, across the grain, 5 cm pieces. Mix together, steak, ginger, scallion, cornstarch, sugar, light soy, set aside to marinate.
Heat wok to smoking, add 2 tbs oil. Stir fry meat mixture two minutes, do not overcook. Reserve. Add 2 tbs oil, heat, stir fry carrots and cabbage two minutes, add spaghetti, stir well and cook a few minutes, add meat mixture, 1 tbs soy and salt. Stir a minute to heat and serve.
Note: Stir fry cooking, just about anything goes. So, substitute, add other veggies, you just can't go wrong.