Add the yogurt, lemon, salt, dill and parsley to a small mixing bowl. Stir to combine. Refrigerate until time to add the dressing to the salad.
Make the salad.
Cook the pasta in a large pot of boiling water that has been seasoned with a couple tablespoons of salt. The cook time will vary depending on the pasta. Refer to the package instructions for cook time. Drain the pasta and place in the refrigerator to chill.Add the chilled pasta to a large mixing bowl with the chick peas, onion, tomatoes, cucumber, spinach and peperoncinis. Add the dressing and toss well to combine. Add the feta to the salad last and gently toss before serving.