Cauliflower Pizza Crust

CRUST:
1/2 LARGE head cauliflower (or 2+ cups shredded cauliflower)
1 large egg
1 cup finely shredded mozzarella cheese (or try another kind!)
1 teaspoon dried oregano
1/2 teaspoon dried minced garlic (or fresh garlic)
1/2 teaspoon onion salt

TOPPINGS:
1/2 cup tomato-basil marinara sauce (or pizza sauce)
1/2 cup finely shredded mozzarella cheese
3 slices Canadian bacon, cut into strips
1/2 cup pineapple tidbits

Directions:
1. Shred the cauliflower into small crumbles. You can use the food processor if you'd like, but you just want crumbles, not puree. You'll need a total of about 2 cups or so of cauliflower crumbles (which is about half a large head of cauliflower. Place the cauliflower crumbles in a large bowl and microwave them (dry) for 8 minutes (see Tips below if you do not have a microwave). Give the cauliflower a chance to cool.
2. Prepare the crust: Preheat the oven to 450 degrees F. Spray a cookie sheet or pizza pan with nonstick spray (or use a nonstick surface). In a medium bowl, mix the cauliflower crumbles (about 1 1/2 cups since they shrink after cooking) with the remaining crust ingredients. Pat the "crust" into a 9 to 12-inch round on the prepared pan. Spray the crust lightly with nonstick spray and bake for 15 minutes (or until golden). Remove the crust from the oven and turn the heat up to broil.
3. Prepare the pizza: Spread the sauce on top of the baked crust, leaving a 1/2-inch border around the edge. Sprinkle 1/4 cup cheese on top. Add the bacon and pineapple, spreading it out around the pizza. Sprinkle the remaining cheese on top. Broil the pizza 3 to 4 minutes, or until the toppings are hot and the cheese is melted and bubbly. Cut into 6 slices and serve immediately.