I feel the same as you, uninspired but fortunately this year it is not my burden
Depending on the age of children i would either ask them to choose what they wanted to eat for each and plan them (i usually ask my children to do that during the holidays with one condition they have to put at least one veg' and it s been quite surprising: they add more veg than i thought) or have them to eat the same as you.
For grown ups i would probably do:
Homemade lasagna (just made one for last night dinner party and it went down very well with a fantastic madiran!).
Raclette with all the trimmings
Fish en papillotte (it s like opening a present on your plate)
Risotto with truffle or mushrooms (i d make a trip to borough market for that)
Seafood meal: smoked salmon, clams, oysters (if you like them), etc
I would add salads, greens, veg etc as starters, fruits for dessert one day with cream, ice creams/sorbets another, pavlova, chocolate fondants (the Gu ones are delicious), etc.
And lots to drink
Good luck and have fun.