Your house, your menu, your choice.

Having said that, MiL has said she'll bring the Christmas Pudding (I hate so wouldn't have made) and Uncle-iL has said he'll buy the turkey for me to cook. So much as I'm happy for the help, it does mean that I'm doing a turkey lunch with Christmas Pud to follow. Good thing I know the family well enough to know that anything else would have been a disaster!