Preheat your oven to 425°F (220°C). Rice the cauliflower by grating it with a box grater or pulsing it in a food processor until it resembles rice-sized pieces. Microwave the riced cauliflower for 5-6 minutes until softened. Allow it to cool slightly.

1. After cooling, place the cauliflower in a clean kitchen towel or cheesecloth and squeeze out as much moisture as possible.
2. In a large bowl, combine the riced cauliflower, egg, shredded mozzarella cheese, parmesan cheese, garlic powder, oregano, salt, and pepper. Mix until a dough-like consistency forms.
3. Line a baking sheet with parchment paper, lightly grease it, and transfer the cauliflower mixture onto it. Spread it out into a round pizza shape, about 1/4 inch thick. Press the edges to form a crust.
4. Bake the cauliflower crust for 15-18 minutes, or until golden brown and crispy around the edges.
5. Remove the crust from the oven and spread a thin layer of pizza sauce over it. Sprinkle with shredded mozzarella cheese and add your desired toppings.
6. Return the pizza to the oven and bake for an additional 5-7 minutes, or until the cheese is melted and bubbly.
7. Serve immediately, garnished with fresh herbs if desired.