Cranberry sauce shouldn't come out of a can. Especially when there's an easy recipe like this one. Stir in a little orange zest if you wish.
Mashed potatoes are a predictable side dish. Want to try something different? How about sweet potatoes? No, they don't have to be candied. Try this recipe, but substitute a can of mandarin oranges for the orange, and replace the corn syrup with 1/2 cup of molasses. You'll love it.
What about pies? Pumpkin pie is traditional, but Simply Recipes offers several other options on this web page.