Turkey is basic, and easy to do, just make sure you have a gluten-free turkey. Some companies inject flavorings into the bird, or have gravy packets in the bird...so check and make sure it's safe.
For sides, I have several great recipes:
For mashed potatoes, I boil cubed potatoes, then just eyeball the margarine, non-dairy milk, salt and pepper to add.
For gravy, you can either use rice flour and make a roux, and add in drippings and chicken stock to make the gravy, or add cornstarch to the drippings.
Raspberry Peach Crisp (or apple, peach, or any other fruit crisp, for that matter)