Preheat oven to 400°F (200°C). Line a baking sheet with parchment paper.
In a large bowl, mix together grated cauliflower, egg, Parmesan cheese, almond flour, oregano, garlic powder, salt, and pepper until well combined.
Transfer the mixture to the prepared baking sheet and shape into a 1/4-inch-thick crust.
Bake for 20-25 minutes, until the crust is golden brown and crispy.
Remove from the oven and top with tomato sauce, mozzarella cheese, and any other desired toppings.
Bake for an additional 5-10 minutes, until cheese is melted and bubbly.
Remove from the oven and let cool for a few minutes before slicing.
Garnish with fresh basil leaves and serve.