In our family we have a tradition of eating Hamburgers and Rootbeer floats on Christmas eve. My mom's family used to do it when she was a girl on the ranch she grew up on and it was a real treat. I don't think there is year I haven't done it, even when we have lived in Taiwan and New Zealand. See Mike grill through the years.
I remember in Taiwan, finding the ground beef was a bit of a challenge but we had been frequenting this Italianish restaurant called "Oodles of Noodles" and they ordered the ground beef special from Hong Kong for me.
In New Zealand, it is summer so we can actually have a proper BBQ and make traditional Kiwi burgers which sound different but are really good. They put fried eggs, pineapple rings, and beet root on their burgers with the usuals. Rootbeer isn't as popular here either, so we had Gingerbeer floats and they were Yum! And since NZ is a day ahead, it is Christmas today and we had our feast last night.