Cook rice noodles according to package directions.
Slice chicken breasts into strips. Marinate in soy sauce for about 1/2 hour.
In a large frypan or wok, heat sesame oil over medium heat. Cook chicken until no longer pink. Add garlic, ginger and onions; cook until onions are tender. Add mushrooms and cucumbers; cook until mushrooms are tender. Add capsicums, carrot, peanut sauce, oyster sauce and chilli sauce. Heat through.
Toss cooked rice noodles with saute. Garnish with sesame seeds.