01 - Preheat oven to 450°F. Place a pizza stone on the center rack during preheating.
02 - Process cauliflower florets in a food processor until finely ground, resembling rice.
03 - Transfer the riced cauliflower into a clean kitchen towel and squeeze thoroughly to remove as much liquid as possible.
04 - Combine cauliflower, eggs, 1 cup mozzarella, 1/4 cup Parmesan, oregano, garlic powder, salt, and black pepper in a large bowl. Mix until uniformly combined.
05 - Line a pizza peel or a baking sheet with parchment paper. Shape the cauliflower mixture into a 12-inch round, about 1/4 inch thick.
06 - Transfer the formed crust with parchment onto the preheated pizza stone. Bake for 12 to 15 minutes, until the crust is golden and firm to the touch.
07 - Remove the crust from the oven. Spread pizza sauce evenly over the surface. Sprinkle with 1 1/2 cups mozzarella, 1/4 cup Parmesan, and optional toppings as desired.
08 - Return the pizza to the oven and bake for an additional 8 to 10 minutes, until cheese is melted and bubbly.
09 - Allow pizza to cool for 3 to 4 minutes. Garnish with fresh basil leaves. Slice and serve while hot.