Mix stuffing with diced apples and nuts, then use it to stuff acorn squash, bake as usual.
Use leftover cranberry sauce in cranberry bread, muffins, on toast, combine with cream cheese and spread on toast or roll up in pancakes.
Use leftover bread/buns/rolls for apple charlotte– scroll down for the recipe, or bread strata for a main dish (just dice it up, and you could stretch it out with added leftover stuffing as well)
You could also make basic bread pudding with leftover rolls.
Or just save them in your freezer and use them when you next make a receipe that calls for bread crumbs. For seasoned bread crumbs, grate the bread into crumbs and then brown it in the skillet with a bit of oil and seasonings.