Cook the noodles until tender, drain and drain. Clean and thinly slice the snow peas. Cut the bimi and shiitake into quarters and the red pepper into thin rings. Pick the leaves off the bok choi and cut the spring onion into rings.
Fry the prawns on high heat until nicely coloured. Set aside. Stir-fry the mangetout on high heat. Add the bimi, shiitake, red pepper, soy beans and the white of the spring onion. Fry for a few minutes, add the prawns and pour in the sauce.
Mix well and add the cooked noodles. Heat through well and divide between 4 deep plates. Sprinkle with toasted sesame seeds and the green spring onion rings.