Preheat the oven to 425ºF.
Microwave the cauliflower in a large bowl for about 4 minutes (add an extra minute if preparing from frozen).
Allow to cool to room temperature. Transfer to a cheesecloth, thin dishcloth, or stack of paper towels (I needed about 3 layers) and squeeze out the majority of the moisture over the sink.
Transfer the cauliflower back to the bowl, and mix in the egg, coconut flour, and spices.
Spread the mixture onto a baking sheet lined with parchment paper, and pinch into a 10-inch round circle (or whatever shape you like!).
Bake for 15-20 minutes or until the top begins to turn a light golden brown.
Add toppings of your choice (sauce, veggies, fully cooked meats), return to the oven, and bake for an additional 10-15 minutes, or until toppings are fully cooked and the pizza is warmed through.
Slice & serve!