To make the salad, start by cooking the Orzo as per package instructions until just al dente.
Dice up all the veg that you're using and slice the olives.
Place everything in a bowl that's large enough to toss the salad.
Make the dressing, combine all of the ingredients in a jar, and shake it.
Then dress your salad, crumble the feta over the salad, and give it a big toss.