Heat the groundnut oil in a large wok over a high heat until hot, then add the pork and stir-fry for 2-3 minutes. Add the carrot, beansprouts, spring onions and mushrooms to the wok and continue to stir-fry for 2-3 minutes.
Add the cooked noodles, toss well using tongs, then season with the soy sauce. Make sure the noodles are hot before spooning into serving bowls. Serve immediately.
For top tips on protecting you and your family when preparing raw meat and poultry, visit Food Safety in the Home and view the full Food safety at home video.