If it’s just the two of you, then you need to answer the question of activity before you answer how to handle the food.
Of course when you go to a big, family Thanksgiving, you know what that involves. People pitching-in with stuff in the kitchen; pinochle and cigars in the basement; the kids on the floor in the den watching "Planes, Trains & Automobiles" or some such.
The activity is that of a big production.
On the other hand, for a quiet, sayyyy romantic, meal at home … do as much prep in advance so that you have a minimum of hassle and fuss when it comes time to light the candles and stuff the turkey.
Even such sacrilege as ordering the meal in, or going out to a restaurant might fit your activity needs.
Along that line, you might also consider checking in with local fancy hotels to see if they have a Thanksgiving special with a nice room and Thanksgiving dinner. (pumpkin-pie shaped jacuzzi, bottle of Cold Duck etc … ahem)
If it’s friends for a "dinner party" type evening … as much prep in advance as possible… fireplace set up to be lit and logs set aside, etc … basically trying to make yourself available to relax with your guests.
Going to someone elses house for Thanksgiving dinner … not much prep or clean up there … just bring a nice gift.