I made green-bean casseroles from Alton Brown, Ree Drummond, and Alex Guarnaschelli, and one would fit better at a barbecue than Thanksgiving dinner

Green-bean casserole is a nonnegotiable Thanksgiving side for me.

My go-to is the standard recipe made with canned green beans, condensed cream-of-mushroom soup, and French's fried onions.

But to make sure I'm not missing out on something better, I followed recipes from three celebrity chefs: Alton Brown, Ree Drummond, and Alex Guarnaschelli.