Also mashua, another Andean root crop, akin to nasturtium. It climbs and spr ads itself around, has very pretty red flowers, flowers and shoots edible in salads, and the roots are supposed to be good too, though I haven't tried them yet. You have to leave them to bulk up in the autumn after the leaves die down, and look for a harvest before the ground get too hard.
And Good King Henry, sits quietly doing its thing in a corner. Spinach like, nice taste. Need to cut off the dead flowers to stop it seeding around too much.