I just ordered from Fresh Market today -- turkey, sides, etc. for 8. I'm really excited. We have a six-month-old and I found out yesterday that I was hosting Christmas when MIL asked what she should bring ... I just have no time and no interest in spending baby's first Christmas in the kitchen.
Anyway, I looked into it: Safety, Giant, Wegmans, Whole Foods, and Fresh Market, all do big dinners, although as of this morning my Wegman's only had the turkey (sold out of the dinner).
Here's a list:
http://www.thinknsave.com/2012/12/where-to-order-christmas-holiday-dinner.html
Had we ordered earlier, Costco also would have been an option. If it's just the three of you, lots of restaurants offer smaller portions and more variety of main dish, too. Order soon!