Start by boiling some pasta. Any will do, but the spiral-shaped fusilli is obviously the best...
Fry some chicken properly. Add spices if you want. I used some oregano and black pepper.
While you let the pasta cool, slice up some tomatoes and cucumber. Larger bits looks more delicate, in my opinion anyway.
Add feta cheese if you want. Parmesan will of course also work.
Oil, salt and pepper, and you're good to go. Pesto on the side, and you have a really simple, quick and tasty dinner.