I know we have sides covered in the other thread. http://chowhound.chow.com/topics/880886
Main courses are always a struggle for me, especially on holidays when the grazin' is good. I love side dishes and frankly when I spend Thanksgiving by myself that's what I make for dinner: a relish tray (olives (to go with the martini), stuffed celery,carrots), stuffing, mushroom gravy, peas, and a salad. Not very protein dense and very high carb.
I've never done a Tofurkey - they freak me out a little. I have made a nut loaf or two.
Though *I* am looking for more protein dense main dishes, I hope you all will share anything you serve as a vegetarian/vegan main Thanksgiving dish. Thanks!