While fusilli is boiling, prep all the veggies. To make the dressing, in a separate bowl whisk the lemon juice and olive oil together.
When the pasta is done drain well, then rinse with cold water until the pasta is not steaming any more. In a large bowl, add the pasta, all the veggies, the feta cheese, salt and pepper, and the dressing. Set in the fridge for about an hour.
When ready to serve, give it another good stir, then top with Parmesan cheese. Enjoy!