Well that is a surprise. I like mine too much as garden plants to think about eating them. But as hemerocallis is rampant in one part of the garden we always decorate a salad with the flowers which can be eaten. I often end up chewing a bit of root when we are splitting them up, a bit carroty in taste.
I will try a small bit though, as the variegation in the leaves will make an interesting salad, I am wary of slugs in lettuce, god knows what I shall be like with hosta.