Preheat oven to 400°F.
In small batches, add cauliflower florets to a food processor and pulse until fine. (Smaller than rice grains).
Put cauliflower in a microwave-safe bowl and cook for 2 minutes on high, stir, then cook for another 2 minutes. Let cool 1-2 minutes.
Spoon cauliflower into a piece of cheesecloth or a clean dish towel, and squeeze out as much liquid as possible. (The drier the better).
In a large bowl, mix together cauliflower, eggs and spices.
Line a baking sheet with parchment paper and spray with cooking spray.
With wet hands, take the cauliflower mixture and spread it onto the parchment paper until it's about 1/3 inch thick.
Bake for 35-40 minutes or until golden brown.
Add desired toppings and bake for an additional 5-10 minutes.
Slice and serve immediately.