Spinach and Artichoke Cauliflower Pizza

3 c. riced cauliflower
2 c. shredded mozzarella, divided
1/4 c. grated Parmesan
1 large egg
3 cloves garlic, minced
1/2 (14-oz.) can artichoke hearts, chopped
1/2 (10-oz.) package frozen chopped spinach, defrosted and wrung dry
Crushed red pepper flakes (optional)

Preheat oven to 425 and line a large baking sheet with parchment paper. Wring out excess moisture from cauliflower using paper towel or cheese cloth.

Transfer cauliflower to a large bowl and add 1 cup mozzarella, Parmesan, egg, and garlic. Season with salt and pepper. Transfer dough to prepared pan and shape into a thin round.

Bake until golden around edges and dried out on top, 20 minutes. Top with remaining 1 cup mozzarella, artichoke hearts, and spinach, and bake until cheese is melty and crust is crispy, about 10 minutes more. Sprinkle with crushed red pepper flakes before slicing.