You mean my mom is traditional & we didn't know it??????????????????????
We never had mac & cheese growing up with Thanksgiving. However, somehow all my kids & my niece/nephew ALL love "Grandma's Mac & Cheese" -- we don't even know when it started but for every single holiday now she is required to bring her Mac & Cheese. The funniest thing is it's nothing special, no secret recipe or anything (it's not from a box though)...just Grandma's touch I guess. Therefore, we will be having Mac & Cheese along with Mashed Potatoes.
I thought we were the odd group having mac & cheese on our Thanksgiving menu.
My vote is the mashed potatoes are the traditional one (have you ever seen a TV ad with mac & cheese in the spread? OR if you are buying a pre-made version, the side is mashed potatoes NOT mac & cheese!)
Now, who knows what they had at the original feast, probably stuff completely different than what we have. I'm pretty sure they didn't have jellied cranberry sauce from a can.