Pre-heat oven to 450F.
Add mozzarella, pepper jack cheese, and cream cheese to a large microwave-safe bowl. Microwave for 45 seconds.
Take cheese mixture from microwave, and add egg, blanched almond flour, baking powder, Italian seasoning, and garlic to the bowl. Then mix it with a spoon.
Continue to mix until smooth. It takes a minute, but it will come together.
Once smooth, lay a piece of parchment paper out on the counter, and spray with cooking spray. Transfer the dough onto parchment paper and cover with a second sprayed piece of parchment paper.
Use a rolling pin to flatten out the dough until it is ¼ inch to ½ inch thick.
Remove the top piece of parchment paper and use greased hands to shape into desired shape.
Transfer the pizza dough on parchment paper to a baking sheet or a pizza stone.
Bake for 10 minutes to 12 minutes.
Remove from oven, and top with keto marinara, cheese, and toppings of choice.
Bake topped pizza for 5-8 minutes, until cheese is bubbly.