First, breathe. LOL!!

Ok, I do my turkey in a Reynold's Oven Bag. Use the biggest size they make, it WILL accomodate a turkey (a pretty big one!). follow the directions and you will do fine. This is the easiest way, there is no basting. Just cook it in the bag for the amount of time on the box (and when the popper dealie that comes with the turkey pops out), and it will be fine!

Green beans are good. That can be cooked on the stove.

Don't worry about doing it ALL from scratch! I don't! And I cook for 20!

We always have cresent rolls. My MIL makes them from scratch. But Pillsbury's are pretty good too, and MUCH easier! That turkey has to sit for 30 minutes after cooking, you can pop the rolls in then.

Pies, do ahead. Maybe make some cookies or pumpkin bread. (Sarah Lee or Mrs. Smith makes pretty darn good pies, too!). Apple is a favorite here, as is pumpkin.

Eek, don't ask me about gravy. My MIL does that!

Sweet potatoes is usually a standard. As is cranberry sauce (canned is easy. Just open and serve). I don't like either.

Don't forget the stuffing! I just use Stove Top, and I don't ever bother stuffing the turkey (so I guess it is dressing.

Ask DH what his mother's Thanksgiving specialty is, then ask her to bring it. My SIL always brings a relish tray (she lives 2 hours away, so that is easy for her).

In a nutshell, here is our spread:
Me--turkey, mashed potatoes, dressing, 2 or 3 pies, broccoli casserole, canned cranberry sauce, maybe some green beans for the kids
MIL--rolls and some yucky cranberry salad stuff, make the gravy.
SIL--relish tray
SIL's MIL--sweet potatoes

There will ALWAYS be tons to clean up. I had just had a baby last year (like 5 days before Thanksgiving), so my only job was to debone the turkey, something I could do sitting down.

Keep it simple, it will all be good! Oh, and remember to mash the potatoes RIGHT BEFORE YOU EAT. They get cold quickly. You can keep them on the stove simmering for a while, before hand. But drain them at the last minute and smash 'em.

Good luck! I've gotten pretty good at a simple and easy Thanksgiving/Christmas dinner, feel free to ask me anything!

Liquor--Get a thing of frozen margaritas and keep em coming. LOL!