Fresh salad with feta, walnuts and blueberries

This fresh salad has it all with crispness, sweetness, salt and bitterness. It is therefore a very good accessory for white fish or poultry, but can also be a lunch salad until you add a little more fiber-rich veg e.g. kale or green beans and increases the amount of feta cheese, so you also get a little more filling protein.