Cook the pasta in boiling water for 7 minutes. Add the asparagus, cook for 3 minutes. Add the remaining green vegetables, cook for 1 minute. Drain. Sauté garlic, onion, pepper and mushrooms, then add cream, broth and most of the cheese. Stir the sauce, scraping the pan, for 2 minutes. Add the pasta mixture and toss until coated. Serves 6