For times when you want to knock up a simple, quick, tasty meal for friends and family, this dish ticks all the right boxes. The combination of mirin, tamari, honey and ginger makes a lovely sticky-sweet glaze for the stir-fried vegetables or the mackerel, while the wakame pickle adds a tangy contrast. Look for packets of dried wakame in large supermarkets and Asian grocers. You’ll find a little goes a long way as the sea vegetable swells impressively when rehydrated.