Place riced cauliflower, egg white protein, and water in a food processor. Blend until it stops mixing. Stop the machine scrape down the sides, and blend again until it’s mostly smooth. cauliflower, egg white protein, and water.
Place mixture on a parchment paper lined baking sheet and spread into a circle. Make sure the circle is not too thin as it will stick to the parchment paper. Bake for 40 minutes at 425 degrees. Remove from oven and flip crust onto a plate to remove the parchment paper. Top with desired toppings. Place back in the oven (on a new sheet of parchment paper) to cook toppings and melt cheese.
Liquid egg whites WILL NOT WORK in this recipe. You need to use egg white protein POWDER. Unflavored. I’ve linked to the kind I personally use.