The only thing better than cornflakes for crunch, is crushed potato chips for crunch. Just slightly south of Iowa, yeah, it's a casserole and not a hot dish.
*Green beans, cream of mushroom soup, french fried onions on top--it's not Thanksgiving without it.
*There's also a can of tuna, peas, cream of mushroom soup, and the aforementioned potato chips. Some people mix in grated cheese.
*Also--bag of frozen hash browns, 8 oz sour cream, a bunch of grated cheese, can of cream of chicken soup. Doesn't need crunch, for some reason.
*Pretty much any combination of vegetables, canned cream-of soup, cheese, meat...choose your favorite crunch. It's kind of hard to go wrong. I am not ashamed to admit that I love casserole.