Preheat oven to 425 degrees F. Line a baking sheet with parchment paper and spray with cooking spray.
Whisk eggs, olive oil, Italian seasoning, onion powder, garlic powder, baking powder, and salt and pepper to taste.
Add cooked quinoa and mozzarella cheese to the egg mixture and mix well with a spoon until everything is well blended.
Spread the quinoa dough into a ¼ inch, even layer on the parchment paper into desired shape.
Bake for 15-17 minutes until it becomes golden brown.
Remove from the oven and top with shredded cheese and bake for additional 5 minutes, until cheese melts.
Enjoy immediately, and serve with marinara or any sauce of choice.