We usually eat at my mum's and it's fairly standard British Christmas stuff - turkey, usually gammon as well, stuffing, glazed veg, sprouts, mashed potato, gravy (not for me) and various seasonal condiments. She normally does a Christmas pudding too which almost always remains uneaten because everyone is too stuffed to have any..
"No time, Mistress, not names enough in the world for all my sins."
For Ninjamas (celebrated with my children the Saturday before Christmas - they are usually not with me the Christmas week) we traditionally have a turkey roll, roast potatoes (with mint sauce), rice, gravy, sprouts (lately also broccoli), and the traditional veggie casseroles the Finns make; suede, carrot and potato.
Last year we were in Fuerteventura for Christmas and had traditional Christmas dinner at a restaurant. This year the whole family are eating out at an Italian Restaurant but I will still have traditional turkey etc. Don't what anybody else is having.
I'm not sure, it just happened. Probably has roots in the alternate explanation for presents: that while people are not watching, the Ninjas break in and reverse-burglarise us, and they know what people want and whether they have been nice because they are stealthy and spy-like. Also, it sneaks up before Christmas, almost unnoticed. A whole mythos has developed around that over the years.
People eat a lot at Christmas. But I cannot eat double as much as usually do, just b/c it is Christmas.
Traditional Christmas food: Ham, sausages, potato of course, red cabbage salad, kale, pickled herring, stockfish, rice porridge with cream and jam. Some eat even more, like meatballs and Janssons frestelse (Jansson's temptation).
We are famous for "Stockholm syndrome": "Q: Hey, what's up with Matt? His Dad is on social security, his mom got laid off, his sister's kids get free school lunches, he collects federal financial aid for college, and he only makes minimum wage working at Walmarts. Yet he keeps talking about how we need to cut taxes for the wealthy and quit spending so much on social programs. A: Yeah, he thinks he's going to be a millionaire soon. He's got Economic Stockholm Syndrome." (Urban Dictionary)