It’s Time to Head to Your Favorite Drive Through

It's a guilty pleasure for me but once in a while, I feel particularly inclined to head for the drive-through of a local fast food chain and get something I consider naughty.  It has to be an unstoppable craving in order for me to succumb to my favorite fast food item, the McDonalds Big Mac (550 calories, 260 of those from fat).  Considering that today, July 24th, is "National Drive Through Day", I think this may be the day to let the calories fly.

What's your favorite fast food item?