Red Fish Stew, Fast and Spicy

This is a fast stew you can make with a variety of fish—a few scraps if that’s all you have—or with one or more types of prime fish. For example, it’s great with shellfish only: shrimp or a combination of shrimp, scallops, and a mollusk, like mussels (make sure they’re well washed). But you can make it with a single piece of sturdy fish, like monkfish or halibut. In any case, be sure to serve it with plenty of white rice, preferably basmati.