In a saucepan, cover fine egg noodles with boiling water. Let stand for 5 minutes. Drain.
In a wok or deep, large skillet, heat oil and stir-fry sliced onion and diagonally sliced carrots for 3 minutes. Add minced garlic clove and gingerroot; stir fry for 30 seconds.
Add chicken broth, water, and soy sauce. Cover and boil for 2 minutes. Add julienne-sliced ham, chopped watercress, thinly sliced mushrooms, and the noodles. Bring to a boil, cover, turn off heat and let stand for 2 minutes.
Add sugar peas, cover and let stand until the vegetables are crisp tender, about 3 minutes. Stir in sesame oil, rice vinegar and red pepper flakes. Sprinkle with thinly sliced green onions.
Makes: 6