Poached Fish With Spinach in Chili-Tomato Sauce

I like this one because it's a one-pan dish—you will need a pan with a lid. You can use a can of tomatoes instead of making the purée if you wish, but puréeing the tomatoes produces a better result. You don't need to be precise with the quantities for this dish at all—a handful of cherry tomatoes, add some onion, etc. The important thing is to have the lid to keep in steam and heat so you get a very nice lightly cooked fish. You don't want to overcook it. I've used hake but you can use any white fish like cod, sea bass, halibut or even salmon. It's simple but tasty, and the kind of thing you could easily rustle up for yourself or friends. You can use any green veg but it works well with fennel—sautéed in a pan or slow-baked, or added to the pan and cooked with the fish and tomatoes. This is a great one for a novice cook.