In 4 quart saucepan heat ... Add shrimp and scallops; cover and simmer 5 ... through. Meanwhile cook spaghetti according to package directions; drain ... per serving: About 650.
Wash clams and cover in ... shell (optional). Cook spaghetti in a separate pan. Stir ... thickened. Stir in scallops and shrimp. Cook 4 minutes ... Parmesan cheese. Serves 6.