Cook noodles according to package instructions. Drain and set aside.

Sauté mushrooms in oil. Add cabbage and pineapple and sauté until cabbage is wilted. Add brussels sprouts and sauté another minute. Add all sauce ingredients and simmer until sauce is thickened.

Add salami and noodles and toss to coat. Finish off with scallions, stirring them into the hot noodles so they wilt slightly. Top with additional chopped scallions.