Pesto Pizza with Feta and Caramelized Onions

Who doesn't love pizza? And if you are one of those people who doesn't love it, there's always a way to mix things up so that it's perfect for you. Cheese-less, Sauce-less, you name it. This recipe is a twist on the classic sauce and cheese combo (not that there's anything wrong with going traditional!) Creamy pesto and rich feta, topped with sweet caramelized onions and other veggies.