The unsexy truth is that the health benefits of diet come down to how likely you are to consistently eat healthily. A single ingredient or dish is not going to revolutionise your well-being, which is why most of my recipes are geared toward ease as well as being designed for their health benefits. This recipe is a shining example of what I’m passionate about. For me, a traybake is the perfect midweek meal because it leaves the oven to do the work. This summery, vibrant dish is packed with phytonutrients from the asparagus and watercress, which support eye and skin health. The salty capers and olives deliver just the right amount of seasoning to complement the fish. Ultimately this dish is super simple so you’ll happily return to it again and again.