I love cooking Christmas dinner, although I do cheat a bit!
My sis makes the best stuffing from scratch so I get her to do mine I cook this seperate - I never stuff the turkey with stuffing!
I put peeled onions in my turkey, cover it with streaky bacon then foil and put it in the oven gas 2 at 10pm xmas eve, by 7-8 xmas morning it is perfect, my son says he couldn't imagine waking up on Christmas day wthout the smell of turkey. I then keep it heated in the top oven.
For roasties I am totally different to everyone I know! I peel them then just place them in the heated meat fat in the tin, no par boiling, no flour, no shaking, no salt! I have been told on many occasions that my roasties are the best! I cook them for about an hour (or less) on gas 6, they are crispy on the outside and lovely and squidgy on the inside.
Veg goes in the steamer - easy peasy!