Currentcorn

A biometal vegetable edible by any species, but only grown by the glitch. This is not metal-plated food, but solid metal. They aren't entirely safe for humans or other species to eat unless it's cooked, but what else should you do with an edible battery? The vegetable is harvested from the ground and new seeds need to be planted afterward.
When the unnamed robot claimed Daenc Hydrax 4 as its planet to govern, the glitch civilization there had this already growing at their farm.