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Travelers, in general, are allowed to bring canned goods on their flights, but TSA suggests storing canned items in checked luggage. Most canned items contain more liquid than what's allowed (3.4 ounces or less for each item), which makes them difficult to read on x-ray machines, and as a result, may require additional screening.
For those who plan to travel with Thanksgiving leftovers, frozen items such as soups or ice cream must be solid and not melted or slushy in the slightest bit when going through security screening. Baked goods such as pies and other treats are permitted but may be subject to screening. Mini bottles of wine or alcoholic beverages are allowed in checked luggage but are limited to 1.3 gallons per passenger.