A Coke/Soda/Pop (depending on where you are from) float. I hesitate to even call this a recipe. All you need is a diet soda and low calorie ice cream. I really like Breyer's Double Churned Free Caramel Swirl Ice Cream, it is 100 calories for half a cup.
Place half a cup of the ice cream in a glass.
Top with diet soda.
Voila! A simple dessert, low in calories, sweet enough to satisfy your craving, but not so sweet that you feel guilty. The caramel swirl/diet dr pepper combo was good, but I think vanilla/diet orange soda would be perfection...
Enjoy!