This is a simple recipe, and requires nothing you can't get at your local grocery store. I'm a Japanese major up at UI, and one day in class we watched a Japanese cook make "shougayaki kinoko pasuta." It looked delicious, and since the weekly Japanese lunch/conversation hour was going to start in 40 minutes, me and my friend rushed to the grocery store, and then to her house to make this (running completely off of memory in a foreign language, no less.) We brought it to the department lounge, and it was not only a huge hit, but we amazed all of our sensei and fellow students with our speed and cooking ability. This recipe sounds very adaptable, and I can easily see adding carrots or other veggies. I don't give any precise measurements here, because, as the Japanese guy with the Osaka accent said, cooking comes from the heart, not the brain, which is why HE didn't measure anything, so we didn't either. I only included amounts because Recipezaar wouldn't let me just put "Green Onions." Use as much as you like of all ingredients. Also, I don't normally eat mushrooms, so I don't know how to measure them. Add as many as you'd like.