My understanding is that a small snack of protein + carbs after exercising helps your muscles recover, which is very important.
How about 1/2 cup of cottage cheese with a little fruit or fiber one cereal mixed in? Or greek yogurt with fruit or a bit of fiber one? Not too filling, not too many calories, and you'll be taking care of your body and helping it get ready for the next workout!
Back in the saddle. Again.