01 - Heat oven to 450°F. Place pizza stone in the center rack as the oven preheats.
02 - Pulse cauliflower florets in a food processor until finely chopped to rice-like consistency.
03 - Transfer riced cauliflower to a clean kitchen towel and squeeze thoroughly to remove excess moisture.
04 - In a large mixing bowl, combine drained cauliflower, eggs, mozzarella, Parmesan, oregano, garlic powder, salt, and black pepper. Mix thoroughly until evenly blended.
05 - Line a pizza peel or baking sheet with parchment paper. Press cauliflower mixture into a 12-inch circle, about 1/4 inch thick.
06 - Carefully slide crust and parchment onto the preheated pizza stone. Bake for 12 to 15 minutes, until golden and set.
07 - Remove crust from oven. Evenly spread pizza sauce over crust, then top with remaining mozzarella, Parmesan, and optional toppings.
08 - Return pizza to oven and bake an additional 8 to 10 minutes, until cheese is melted and bubbly.
09 - Cool pizza for 3 to 4 minutes, garnish with fresh basil, slice, and serve hot.