Preheat oven to 425℉ and line a sheet pan with parchment paper.
Chop the head of cauliflower into florets and pulse in a food processor until very finely minced--like snow
Microwave cauliflower in a microwave-safe bowl for 5 minutes. This will tenderize the vegetable.
Let cool until cool enough to handle. Place cauliflower in a kitchen towel and squeeze as much water out as possible. You want the ball as dry as you can get it. The ball of squeezed cauliflower will be significantly smaller than when you started.
Place ball of squeezed cauliflower in a mixing bowl and add the cheeses, eggs, and spices. Mix until thoroughly combined.
Pour contents onto parchment lined sheet pan.
Press into a circle shape, making sure to make a little lip at the edge of the crust.
Bake 15-20 minutes until crust is lightly browned.
Top with favorite sauce and pizza toppings. Bake for another 10-15 min until cheese is melted and browned.