Cook the angel hair pasta according to package directions. Drain thoroughly, wash with cold water, and toss with the sesame seed oil.
Heat the vegetable oil in a large wok or very large saucepan until very hot.
Add the sesame seeds and ginger and stir-fry for 30 seconds. Add the onions and stir-fry another 30 seconds, then add the cabbage and mushrooms and half the scallions.
Stir-fry the veggies for a few minutes, until the cabbage and mushroom are tender, but not soggy. Add the red pepper flakes and mix in.
Add the tamari or soy sauce and rice vinegar to the wok, stir quickly, and then add the noodles. Stir-fry the noodles, moving them constantly so they heat through and mix with all the veggies and seasonings. Add salt if needed.
Garnish with remaining scallions and serve hot.
Nutrition info assumes the use of wholegrain angel hair pasta.