Not all nimono dishes need to be made with dashi. If one of the ingredients has plenty of umami on its own, you can make a dashi or broth from it without having to add any more. One such ingredient is squid (ika) or calamari. If you live in an area with a sizeable Italian, Greek or other Mediterranean immigrant population, as well as us Asians, chances are you can get a hold of good quality squid. If you can, get a nice one and try this quick and simple nimono.