Sautéed Thick Fish Fillets with Miso Soup

This dish is most dramatic if the fillets are cut into squares or rectangles and then served in soup plates surrounded with the broth. Here, the soup contains only a little chopped green onion, but you can add sliced shiitake mushrooms, julienned leeks (blanched for 5 minutes), a few snow peas, thin green beans, or cockles, mussels, or other shellfish.