Omit the salt when cooking the pasta if you are using the smoked salmon in this rich dish. The smoked salmon adds all the saltiness you need.
Cook pasta according to package directions. Drain; keep warm.
Meanwhile, cut the salmon into thin bite-size strips; set aside.
For sauce, in a large skillet cook the green onion and garlic in margarine or butter until tender. Add salmon and cook for 1 minute. Stir in whipping cream, snipped or dried dill, lemon peel, and pepper. Bring to boiling; reduce heat. Cook, uncovered, at a gentle boil about 5 minutes or until the sauce thickens slightly. Remove from heat. Stir in Parmesan cheese.
Arrange the pasta on individual plates or a large platter. Spoon the sauce over the pasta. If desired, garnish with fresh dill sprigs. Makes 4 main-dish servings.