Thanksgiving Menus Without Wheat...or Poultry?

I'm trying to plan a Thanksgiving meal around my allergies, which include wheat and all poultry (I know, bummer!) The biggest obstacle is a substitute for the turkey, and the other is the lack of stuffing...which used to be one of my favorite things, along with pie crust. I've seen stuffings made with polenta...have any of you had success with that or a recipe to share? The important thing to me is to get the idea of the flavors of Thanksgiving, so we don't feel too deprived.

Here's what I'm thinking about, but I am open to suggestions!
--delicata squash stuffed with roasted grapes and cranberries
--roasted baby potatoes
--roasted asparagus
--maybe an attempt at osso bucco? or roast beef?
--hot grape-juice-and-cranberry cider to drink

Dessert:
--maple creme brulee with sugared cranberries on top
--cranberry-chocolate-chip muffins
(I tried and failed to make a delicata-squash cheesecake, but let's just say the texture of delicata squash does not equal pumpkin.)