If you're flying for Thanksgiving, first of all, WHY?! Secondly, the TSA has put out a list of items that you can bring on the plane in your carry on. Although it's weird, pack your casserole travel case, put on your mask and get on board!
1. Meats like turkey and ham. Frozen, raw, or cooked. They're all allowed.
2. Stuffing. Again, cooked or uncooked. You can have it in your carry-on.
3. Casseroles. Things like green bean casserole are allowed. So is mac-and-cheese.
4. Fresh vegetables and fruit.
5. Baked goods, like pies, cakes, cookies, and brownies.
You CAN'T carry this stuff on but it's ok to check them in your luggage. Not sure why you would want to, but ok....
1. Mashed potatoes. Whole potatoes are fine. But once they're mashed, they're not a "solid" food anymore and have to be checked.
2. Cranberry sauce. It's "spreadable," so it has to be checked. Even the jelly kind.
3. Gravy. Not allowed in your carry-on because it's a liquid.
4. Canned fruit and vegetables. Not allowed because of the liquid in the can.
5. Wine and other alcohol. You can only carry them on if you bought them in a duty-free store at the airport.