1)Rinse bean-sprouts in cold water,drain well on on papper towels.
2) Cut spring onions (scallions) in short sections.thinly shred red peppper,if using,discarding the seeds.
3)Boil noddles in hot wter as directed on packet and drain the water from noddles when they prepared.add 1 tsp of butter in noddles.
4)Heat the oil in preheated wok.add bean-sprouts,spring onions, carrots and chilly pepper,if using.and stir fry for 2 minutes.and add salt,sugar ,soy sauce and sesame oil,if using to the mixture in wok.stir well to blend.
5)Add all ingredients in nodddles and serve immidiately hot.