Italian Polenta Pizza with Caramelized Onions and Kalamata Olives (Gluten Free)

Polenta is a very versatile grain (coarse cornmeal) that can be enjoyed for breakfast as a porridge or eaten as a main meal baked, fried or grilled.  When you are making polenta from scratch you will always begin by making the porridge and then you can decide what to do with it next.  With this polenta pizza recipe, the porridge is flattened and then baked in the oven to make the crust.