Ranch-Parmesan Chicken

I got this recipe from one of my May 07 girls--princessannie--I didn't have the recipe the night I went to make it, so I had to kind of remember it from my mind...this is what I came up with.

4 boneless skinless chicken breasts pounded as thin as you can
1 packet of dry Ranch dressing
4 tsp light sour cream
1/2 cup of dry parmesan cheese

Turn oven to 400. Spray flat baking sheet very well with cooking spray.
Mix sour cream and Ranch packet together. Rub Ranch mixture all over chicken breasts, then dredge in parmesan cheese. Place on baking sheet.
Bake on 400 for about 20 mins until temp reaches 165.

I roasted some asparagus alongside the chicken for a complete meal.