Step 1 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Preheat oven to 425°F.
Step 2 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Line two large baking sheets with parchment paper. Set aside.
Step 3 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Thaw the bags of frozen riced cauliflower in the microwave according to package directions. Set a large fine-meshed sieve over the sink. Turn the riced cauliflower into the sieve and strain.
Step 4 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Place the cauliflower on the center of a large dish towel. Gather the towel into a sack and hold over a bowl or sink. Firmly squeeze the cauliflower until water no longer drips out.
Step 5 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Transfer the cauliflower to a large mixing bowl. Press down on it with paper towels to remove any last traces of water. Add the garlic powder, salt, black pepper, egg, and cornstarch. Mix thoroughly with a fork until the cauliflower is evenly coated and pale yellow in color.
Step 6 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Divide the cauliflower into two equal mounds on each baking sheet. With clean hands, firmly pack the mounds into discs approximately 1/2 inch thick and 7-8 inches in diameter.
Step 7 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Bake the cauliflower crusts on middle rack of oven for 35 minutes.
Step 8 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
When the crusts are firm, browned on the edges, and slightly golden on top, open the oven door and quickly brush the surface of each with a thin layer of egg white. Close the oven and continue baking the crusts for 4-5 minutes longer.
Step 9 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Remove the baking sheet from the oven. Spread a generous 2 tablespoons of pizza sauce evenly onto the center of each cauliflower crust, leaving a 1/2-inch border around the sauce. Sprinkle equal amounts of shredded cheese and Italian seasoning over each cauliflower crust.
Step 10 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Return the pizzas to oven and bake until the cheese is bubbly and golden, 10-11 minutes.
Step 11 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Check to see that pizzas are done. Remove from oven or add time as needed.
Step 12 of 12
Cheesy Gluten-Free Cauliflower Crust Pizzas
Allow pizzas to cool on baking sheet for 2-3 minutes. Sprinkle pizzas with red pepper flakes, if desired, and slice and serve.