Preheat oven to 400°F.
In a food processor, process cauliflower until finely chopped.
In a microwave-safe bowl, cook cauliflower for five minutes or until tender. Place cauliflower in a towel, and squeeze out excess water so it is completely dry.
In a bowl, mix egg and cauliflower until well-combined.
On a parchment-lined baking sheet, spread cauliflower dough out until it resembles a pizza round. Bake for 40 minutes.
Top however you want and bake in a 450°F oven for 7 minutes or until cheese and toppings have baked.