Arch--Your morning activity is admirable.
I'm not a vegan, was just trying to cover all bases for unusual celebrations. A friend, however is vegan. Any main dish can be substituted for turkey, since I also doubt you can duplicate the taste with tofu. The point is to make something special. And as everyone in her family isn't vegan, I guess she just skips the turkey and eats the other dishes.
KV--try recipes from the internet. But you can cook anything that you consider special, since Thanksgiving should be about celebration and family, not about food.
My holiday will be a bit unusual. My congregation has a dinner every year for members who have no other plans. The number of diners varies greatly; one year we'll have 75, the next 16. We all contribute one dish, and there's a real sense of community. Some of these people I've known for 30 years, other might be new acquaintances.