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(Undated) -- A new report reveals Iowa's favorite side dish for Thanksgiving. Campbell Soup Company says the favorite side dish in Iowa is mashed potatoes. However stuffing is the top side in the U.S., followed by mashed potatoes, sweet potatoes, green bean casserole, and mac and cheese. In Campbell's first ever State of the Sides report, it says a majority of Americans would rather have side dishes than the main entree. You can see every state's favorite side dish and more side dish information at sidesseason.com.