Money Chick-fil-A is welcoming spring Monday with new Frosted Key Lime treat March 14, 2019March 15, 2019Kelly Tyko, USA TODAYComments Off on Chick-fil-A is welcoming spring Monday with new Frosted Key Lime treat Spring is coming early to Chick-fil-A restaurants nationwide. The chicken chain is releasing the new Frosted Key Lime Monday, March 18.