Preheat your oven to 450 degrees. Wash and grate the zucchini using a cheese grater, place it in a bowl and let sit for about 10 minutes. Squeeze out the excess water using a cheesecloth or a hand towel. Place the zucchini in a bowl and add the egg, ½ cup of the cheese and all the seasonings. Stir until evenly mixed together. Cut a piece of parchment paper to fit your pizza pan or pizza stone. Spread the zucchini mixture into a circular shape onto your pan using a spatula. Bake for 20 minutes. Remove from oven, add the sauce if desired and sprinkle the other ½ cup cheese over the pizza. Bake another 5-10 minutes. Allow it to cool a few minutes before slicing.