Cook fettuccine according to package directions, adding lemon-pepper to the cooking water. Meanwhile, toss shrimp with lemon juice. In a large skillet, saute shrimp and garlic in butter and oil for 4-5 minutes or until shrimp turn pink; remove and keep warm.
In the same skillet, melt cream cheese; whisk in milk and Worcestershire sauce. Cook and stir over low heat until smooth and heated through. Stir in capers. Drain fettuccine; toss with cheese sauce. Top with shrimp; sprinkle with salt, pepper and parsley if desired.