Well it depends on what type of cardio you performed and for how long...
If it was a HIIT session I would treat it almost like a weights session.... Taking in some protein (no carbs for me here though)...
If it was a long, slow and stead cardio I would just take in some water and BCAA'S....
But really it does not matter too much.... Don't over think it.... Think more on a daily basis... Ie. your food intake over the day