This is one of my all time favorite salads. Very simple. Slightly under-ripe nectarines make a great substitute for tomatoes–sweet and sour with just enough firmness not to turn to mush when you mix it. The sweet-sour flavor of the nectarines goes just divinely with the peppery rocket leaves. Avocado rounds it out, the pecorino adds that extra salty tang and the sunflower seeds give dimension to the texture. Add some fresh crab to this salad and you will just die of delight.