Chicken Fettuccine Alfredo

I derived this recipe from cooking light so it is low in calories and fat.

Ingredients

2-3 chicken breasts
1 tablespoon margerine
2 garlic cloves, minced
1 tablespoon all-purpose flour
1 1/3 cups 1% low-fat milk
1 1/4 cups (5 ounces) grated fresh Parmigiano-Reggiano cheese, divided
2 tablespoons 1/3-less-fat cream cheese
1/2 teaspoon salt
4 cups hot cooked fettuccine (8 ounces uncooked pasta)
2 teaspoons chopped fresh flat-leaf parsley
Cracked black pepper

Preparation
Brush chicken breasts with olive oil and sprinkle with salt and pepper. Cut chicken and saute till chicken is no longer pink throughout.

Melt butter in a medium saucepan over medium heat. Add garlic; cook 1 minute, stirring frequently. Stir in flour. Gradually add milk, stirring with a whisk. Cook 6 minutes or until mixture thickens, stirring constantly. Add 1 cup Parmigiano-Reggiano, cream cheese, and salt, stirring with a whisk until cheeses melt. Toss sauce with hot pasta and chicken. Sprinkle with remaining 1/4 cup Parmigiano-Reggiano cheese and chopped parsley. Garnish with black pepper, if desired. Serve immediately