YT, I find that terrible, terrible that you beat me to it that is, LOL.
We too are just a deuce this Christmas, old fogey married folks, and decided on the KISS approach this year. So we just picked up two lobsters and some crabmeat to stuff them with.
Love the ideas given by other posters.
Just another idea. How about a tapas/mezze/antipasto approach. A lot of appetizers or small dishes. You can cook as little or as much as you want and you are limited only by your imagination.
Buy some shrimp and make it with a garlic sauce, or cut up some nice sausage into chunks and add a tomato sauce, make (buy) a cold noodle dish, or............
Have a dish with some olives (many kinds available), cheeses, meats, artichoke hearts, pimentos, gosh I could go on and on.
Walk about the supermarket and look at everything, fresh, canned, you name it. Buy what you like.
We did this the Christmas after my fil died, just us and my mil, sil, and bil. We meant it as an appetizer. It went over so well we did not cook the steaks.
Whatever you decide am wishing you and all of the DC family, including Spike, a Merry Christmas.