Lol my entire Christmas dinner is coming from M&S even down to the gravy!!!
However I would be tempted to serve home cured Salmon for a gentle starter against the richness of the venison and for pud a classic trifle - not too heavy.
how about salmon - or braided salmon and monkfish?
On the venison, a nice hock terrine as a starter perhaps?
As an aside, Fouchards used to have a customer who came in to their Parisian store before Christmas and would buy 2kg of truffles for a Christmas soup - Bocuse's epic cook book has a recipe in it for that!
lol they are so easy I take the roe off as I don't like it and I have served the scallops hot or cold.
Cold is 'cooked' in lime juice
Hot I know you know how to cook them
The bloody mary sauce is lightly cooked spring onions with or without celery finely chopped - good quality tom juice, vodka and a splash of lea and perrins.
Again I have served this warm or cold and it has gone down well with both.
Have you tried Stilchelton yet, Eccles, positively unctuous - a Stilton made in the way it used to be, from non-pasteurised milk. Neal's Yard sells it.