Cauliflower Pizza Crust

Ingredients for one 10-inch pizza crust:
1 head cauliflower (about 3 packed cups ground)
1/2 cup water
– Cook cauliflower with water for 5-6 minutes, let cool, and squeeze out ALL water with a towel. You should have about 1 1/2 cups of dry cauliflower pulp left.
1/2 tsp salt
1/2 ounce finely grated Parmigiano-Reggiano (about a 1-1/2 inch square grated)
2 ounces fresh goat cheese
cayenne to taste
1 large egg