Peel and devein shrimp. In a large pot cook fettuccine according to package instructions. Meanwhile pour alfredo sauce in a medium pan, heat on low. In large skillet on med high heat melt butter or margarine add garlic, add shrimp cook till they turn pink, about 2 min on each side. Add shrimp to alfredo sauce, when fettuccine is cooked, drain and rinse, add sauce and shrimp serve immediately. Serves 4. You can also use chicken instead of shrimp. Thanks to Ty LaPerriere.