2. To make the cilantro sauce: In the bowl of a food processor or a blender, combine cilantro, garlic, jalapeño, green onion, and lime juice. Pulse until combined and roughly chopped. With the motor running, slowly pour in the olive oil. Blend until smooth. Season with salt and pepper.
3. Divide the sauce and spread evenly on pita bread pieces. Top with shredded mozzarella cheese. Place pita pizzas on a large baking sheet and bake for 8-10 minutes, or until cheese is melted. Remove from the oven. Top pizzas with avocado slices. Sprinkle with salt. Cut into pieces and serve warm.