I have Russian friends who visited one Christmas (when it was still easy for Russians to visit). When we asked them what they ate for Christmas they looked confused and said, we cook something we really like, usually a bit more expensive or luxurious than usual. They thought it was hilarious that practically a whole country cooked essentially the same dinner on one day of the year.
bit of a lightbulb moment for me. We are having beef this year, and will be having lamb the first year we aren’t hosting lamb dislikes (the rest of the family).