To turn this recipe into a pasta salad, simply follow it as it is, but add an extra teaspoon of oil to the pasta, and do not add the crumbled feta cheese until the pasta has cooled off completely. To add volume, you can add some other vegetables, such as cherry tomatoes, corn, pitted olives, or grilled peppers to the mix. Should you prefer, you can add chopped grilled chicken to the pasta sauce instead of feta.