Yes, Panera is open on Christmas Eve. It's a popular place for people to grab a quick meal or a warm drink during the busy holiday season. Panera offers a variety of menu items, including sandwiches, salads, soups, and pastries. It also has a drive-thru for those who are on the go. So, if you're looking for a quick meal or a warm drink on Christmas Eve, Panera is a great option.