Oh I love them! They really grow like weeds here. We have patches of their very tall daisy type flowers coming up all over and once they've died back then we dig. The only way I've ever eaten them is steamed or baked - like a potato. Add a dash of olive or coconut oil and a teeny bit of salt. Really yummy. Even cold they're good. I guess they are more potato tasting so I think they would be lost in a casserole