It doesn't get much more Florida than this. Starting Monday, March 18 and available until May 25, Chick-fil-A restaurants will be serving "Frosted Key Lime." This frosted beverage will be made with ice cream, lemonade, sugar, and lime flavoring. They tried this out in Austin, Texas last year and it was a hit. The small has about 350 calories or 280 if you ask them to use Diet Lemonade. It'll cost about $3.39.