I don’t do a proper Christmas dinner - I live alone, and I usually manage to fend off all the people who think it’s scandalous to be on your own on Christmas Day. I don’t do Christmas lunch at all - I chill, watch TV or box sets, or read. Ok, I may have a chocolate or two.
In the evening, I may do roast veg with all the trimmings - bread sauce, Yorkshire puds, stuffing - but no meat, because although I’m not veggie, I don’t think meat is necessary with all that lot. No starter, and home made mince pies for dessert. Or I may just have something ordinary like sausages and chips. Some years, I’ve bought loads of really nice cheeses (there’s a brilliant cheese shop close by that will sell me small quantities of lots of different ones) and had bread, cheese and wine. I really can’t see the point in tucking into 2000-3000 calories in one meal and then feeling yuk for the next 24 hours.