Simple and delicious. I think adding chicken ruins it, but some people prefer it like that. Bean sprouts are essential, as are chopped scallions on top. I usually sprinkle more soy sauce on top after it's done.
Angel Hair or Thin spaghetti are right for this. When you think about it, is normal-sized spaghetti good for anything? I don't think so. I hate it because the flavor/pasta ratio is too low with it.
Here's the recipe.