We have done it ourselves a few times and were actually due to do the big extended family, 2 turkeys in 1 day, Christmas this year. But that plan has been abandoned, even if travel is resumed. So it will be back to dinner for 3. Which is normally still a full turkey and all the trimmings that we like, but not the extras that others want but we don't like.
I'm normally gung ho to still do a full turkey, while DH talks about a breast being enough....you need the dark meat! But we did a roast breast last week as a small joint from the butcher and I was very pleasantly surprised (except at the lack of leftovers).
But we will almost certainly do a roast of some sort. A special one. But we'll see what's available in the few days before Christmas - turkey, duck, (might persuade DH into trying a goose?), rib of beef, nothing would be ruled out just how special can we make it?
And stuffing. Adapted to suit the meat, but ya gotta have stuffin'.
And proper goose fat roasties. DD (14) has already said she wants proper mash (no lumps, creamy without using actual cream or extra butter....) and that my mash is not good, but M&S ordinary mash is ok (not the luxury one cos that has cream!). But that is as well as roasties, not instead.
Some nice veggies - probably roasted roots. Possibly some others (a max of 4 veggies dishes) and tailored depending on the joint and what would suit it. Almost certainly some brussels sprouts. Sufficient for us all to enjoy, and allow some leftovers, but not mountains that will have us finding leftover ideas for days.
Proper gravy, but we're not great on other sauces (cranberry, mint, apple, horseradish, bread, etc) that traditionally go with various meats. (Leftover turkey gravy gets frozen, for my annual Thanksgiving turkey dinner after work on the 4th Thursday in November - when I throw a breast into the oven and its all a bit rushed so some shortcuts are needed).
Maybe proper pudding (I managed to make a cake for the 1st time in over 20 years of marriage this year, maybe I can add a pudding to those efforts!!).
Probably a bowl of fresh fruit salad and cream.
Or something involving chocolate.
We usually open a bottle of bubbles while turkey cooks and we open presents, nibbling on some M&S party food (our starter).
I usually have a nice bottle of wine to match the bird for dinner, and a 2nd to open if we are enjoying it and relaxing - although we rarely do open it on the day. Some years, we have a small glass of port with chese - but often we just finish the wine we've been drinking.
I definitely want to have a curry feast another day - at least 3 different curries (including Turkey surprise if we have leftovers!), but things like Chicken Vadagam, Lamb Rogan Josh, Mixed Veg Bhuna etc all in the middle. Proper pilau rice (which is very straightforward if you have the handful of spices to fry in the pot before adding the rice and then the water). HM Naan breads and a pile of mixed puppodums. And some proper tomato salsa.
And most of the rest of the season should be generally grazing on leftovers and snacks and cheese rather than proper cooking.