How good are they, really? For reference, Ki's granny made her crawfish fettucini and everyone who tried it wants her to move here and they will take turns hosting her so she can cook for them. She is a seriously excellent cook, one of the best I know, and I learned a lot from her. She was one who requested the recipe and said that whenever she has to bring something to a potluck she will be making these, and will probably never eat green beans any other way.
Green beans, any kind- fresh, frozen, canned, doesn't matter.
Cook green beans however you like them done- crisp tender, mush, doesn't matter but DON'T season them! When they are done to your liking add equal parts butter and soy sauce, just enough to coat, probably a Tbsp of each for a lb of beans. Sprinkle with sesame seeds - we prefer toasted, but plain work as well. Toss gently.
For the wedding we kept them warm in a crockpot and they stayed perfect.