We'll give the dish its due: Green bean casserole is easy to make. Just take canned green beans and mix with cream of mushroom soup, black pepper and French fried onions, then bake.
It's a food that's hard to mess up, which is one reason this recipe has been a staple since its creation in the Campbell's Soup corporate kitchen in 1955. Made for an Associated Press feature, green bean casserole quickly became Campbell's most popular recipe, and it's probably the only reason some people ever purchase cream of mushroom soup today.
Still, many of us would rather not have it on our Thanksgiving tables. After all, not everyone appreciates the combination of green beans and cream of mushroom soup, especially if the cook uses canned beans, which gives the entire casserole a distinctly not-so-fresh flavor. Add to that some grey soup, and all the French fried onions in the world can't make up for this dish's unappetizing appearance.