Cook the noodles in salted boiling water, drain and keep aside.
In a large wok or pan, heat oil and add the chicken pieces; cook for 3-4 minutes till ¾ ths done.
Add enoki mushrooms and mix well for 30 seconds.
Add soy sauce, fish sauce, grated ginger and pepper and mix well.
Add the cooked noodles and toss well.
Garnish with chopped spring onions.