Preheat your oven to 425°F (220°C) and line a baking sheet with parchment paper.
Rice the cauliflower in a food processor until it resembles fine crumbs. If using pre-riced cauliflower, measure out 4 cups.
Microwave the riced cauliflower for 5 minutes. Let it cool completely, then transfer to a clean kitchen towel and squeeze out as much moisture as possible.
In a large bowl, combine the squeezed cauliflower, eggs, cheeses, and seasonings. Mix well until it forms a cohesive dough.
Spread the mixture onto the prepared baking sheet, forming a 1/4-inch thick circle. Make sure the thickness is even throughout.
Bake for 20-25 minutes until golden brown and crispy around the edges.
Add your sauce and toppings, then return to the oven for another 10-12 minutes until the cheese melts and the vegetables are tender-crisp.
Finish with fresh basil leaves before serving.