Cook the pasta according to the packet instructions, then rinse it in plenty of cold water. Drain in a sieve.
Cut all the vegetables into small pieces. It is a good idea to remove the seeds from the cucumber and tomatoes if they are very watery – that way you avoid diluting the dressing.
Mix the ingredients for the dressing and season to taste with salt and pepper.
Toss the pasta, parsley, vegetables and feta with the dill dressing, and top the salad with finely chopped herbs if you like.