Green bean casserole is the funniest part of thanksgiving dinner to me because it's origin as a dish was created in 1955 by dorcas reilly at the campbell soup company. That's really it. It was a way to make a quick dish with two things that most american households had on hand - campbell's cream of mushroom soup, and green beans. Also, in 2002, reilly presented the original recipe card to the national inventors hall of fame in akron, ohio! It became a thanksgiving staple relatively quick, which is interesting to me because green, navy, kidney, and black beans are all native to peru, and migrated north to the us by indigenous folks ( Chonky Trevor )