Cook the pasta according to the package instructions. Drain the pasta in a colander and rinse briefly with cool water to cool off the pasta. Drain well.
While the pasta is cooking, prepare the veggies. Slice the cucumber into half moons, chop the bell peppers, slice the tomatoes in half, thinly slice the red onion, and chop the parsley. Set the vegetables and chopped parsley aside.
Once the pasta has drained, transfer it to a large bowl. Add the chopped vegetables, chopped parsley and feta cheese.
Pour the dressing over the pasta salad. Toss the salad ingredients together until everything is evenly coated in the dressing. Add salt and pepper to taste, I added about ¼ tsp of salt and ¼ tsp ground black pepper. Serve immediately or refrigerate until ready to eat.*
*I prefer to let the pasta salad refrigerate overnight or at least 4 hours prior to serving so all the flavors can marry together. If you are making this ahead of time, wait to add the feta cheese until right before serving.**I portioned this into generous servings, but this recipe can definitely feed a lot more people if you're serving this with other side dishes.