Preheat oven to 400 degrees F. Rinse cauliflower separate into florets. Place cauliflower florets in a food processor and process until it reaches a rice/couscous texture.
Place the cauliflower in a microwave container and cover with lid or plastic wrap. Microwavable for 5-7 minutes. Place the microwaved cauliflower in a large bowl and add the eggs, Parmesan and Mozzarella, oregano, crushed garlic and stir until combined.
Transfer to the baking stone or sheet, and using your hands, pat out into a large rectangle
Bake at 400 degrees for 15 minutes. Remove from oven.
Mix 2 the tablespoons butter and diced garlic in a small bowl then spread the butter and garlic mixture over baked cauliflower bread and top with Parmesan and Mozzarella cheeses.
Place back in the 400 degree oven for 5 minutes or until all the cheese is bubbly and melted.
Slice and Serve with warm marinara or your favorite dipping sauce!