Dollop the crust with ricotta, sprinkle with parmesan, onion and mushroom mixture. Top with shredded mozzarella, a pinch of sea salt and freshly ground pepper.
Bake directly on the oven rack for a bit of extra crunch or on a pre-heated baking stone or baking sheet for 10-18 minutes.
Recipe by phoebe's pure food at https://www.phoebespurefood.com/mushroom-white-pizza/