In a tall container add all the ingredients for the dressing, mix well, and place in the refrigerator to chill.
Cut the tomatoes into 1 inch chunks, do the same with the cucumber, and thinly slice the red onion. Add equal parts of all three ingredients into individual salad bowls (or just add everything into one big bowl).
Add a 4-6 olives per person, and some Parmesan cheese! Before your ready to eat shake dressing well, and add to the salad!
Notes
I highly recommend mixing up your own dressing like in the recipe! If you are in a real pinch, you can use a bottle.