I have found an incredible tasting fat-free sour cream
I don't know if you all have this brand in your stores but it tastes amazing! I can only find in at Albertsons here in Arizona. It is called "Naturally Yours" fat-free sour cream. To me it taste very similiar to regular sour cream and much better than the store brands of the fat-free. Give it a try if you can find it!
If you can't find this one, my store carries Knudsen's brand light sour cream. I don't like the FF, but the light is very good IMO. Certainly better than any of the generic brands. I am going to check our Albertson's for Naturally Yours.
One more thing....my newest favorite dip is 1 carton of the Naturally Yours non-fat sour-cream mixed with one package of the Hidden Valley Ranch Fiesta Ranch dip (dry...where the salad dressing are)
It is really flavorful with just a kick of spicy!
Goes well with my cut up veggies and low fat tortilla chips!