Chicken Breasts with Lemon Sauce ( diabetic friendly )

4 boneless, skinless chicken breasts (3 ounces each)
garlic salt to taste
black pepper to taste
non-fat nonstick cooking spray
1 c. fat-free chicken broth
1 1/2 tbsps. fresh lemon juice
1/2 tsp. grated lemon peel
1/4 c. fat-free parmesan cheese
1/3 c. fat-free sour cream
1 tbsp. all-purpose flour

Season chicken breasts with garlic salt and black pepper.
Spray skillet with nonstick cooking spray.
Add chicken breasts and brown and cook over medium heat until done, about 4 to 5 minutes on each side.
In medium saucepan, combine chicken broth, lemon juice, lemon peel, parmesan cheese, and sour cream.
Use flour to make a thin paste.
Stir paste back into sauce and stir over medium heat until thickened. Pour over cooked chicken breasts and serve.