By Daniel Kline While the big three fast-food burger chains generally keep at least some locations open on Christmas, few people associate the holiday season with getting a burger and some fries. It’s not that McDonald’s, Burger King, and Wendy’s don’t do some business over the holiday (not everyone can make an edible turkey) but it’s generally a quiet time for all three companies. The days between Christmas and New Year’s are heavy shopping and travel days. They’re a period where people often turn to fast food because it’s easy and convenient. Related: Target accused of making huge retail the…