Looks like it'll be my son and me at a campfire for Thanksgiving. He's 9, so we are not into spending the entire day re-enacting the trials of the first Thanksgiving by preparing an entire meal "authentically" over a fire. We would, however, like to have a little something special to mark the day.
So far I'm thinking of chilled cranberry salad mixed in the blender at home and a turkey loaf. I've seen recipes that use pastry shells in a pie iron, so might do pie that way. He does not like sweet potatoes or squash, but if there's a simple way to do them over a campfire, I might tuck one in for myself. I'm sure Chowhounds can improve on this menu.
Sweet potatoes would be easy--just wrap in foil and roast. I loved roasted sweet potatoes. This might not be Thanksgiving like but your son might love roasted bananas. You peel a sliver of skin off, split that 1/3 banana, fill w/ chocolate chips, peanut butter, raisins, nuts, put the top of the banana back on,cover in foil and roast. The banana turns creamy and everything else melts into it. It was a big hit w/ girl scouts that age.
You can also bake inside an orange shell, either rolls (this one shows cinnamon rolls but you could do regular dinner rolls--and it uses half an orange. You could do it like the cake below and cover the whole thing in aluminum wrap):
Hey, that sounds like fun!
Pie Irons are, IMO, one of the greatest cooking implements of all time. "Waffles" of butter-crisped herb stuffing or mashers sound heavenly. As does a "Croaked Monsieur" grilled turkey sandwich.
Don't forget pineapple upside-down cake in your camp oven, and pudgiepies in the irons for dessert!
If you want to dispense with the turkey entirely, you could roast a chicken over the campfire. Or go with sausages, boiled, then threaded onto a skewer or stout stick, wrapped with creasant roll dough, and slowly toasted until you achieve pig-in-blanket status.