For the meat layer: Grease a 7.5 inch barrel cake pan (see note) with 1 teaspoon olive oil
In a large bowl, combine the ground beef, marinara, celery, onion, garlic, salt, and pepper. Place the seasoned meat in the pan.
Place the pan in the air fryer basket, set the air to 375F for 10 minutes.
For the Cheese Layer: In a medium bowl, combine the ricotta, half the mozzarella, parmesan, lightly beaten eggs, italian seasoning, and minced garlic. Stir until well blended.
At the end of the cooking time, spread the cheese mixture over the meat mixture. Sprinkle with the remaining 1/2 cup mozzarella. Set the air fryer to 375F for 10 minutes, or until the cheese is browned and bubbling.
At the end of the cooking time, use a meat thermometer to ensure the meat has reached an internal temperature of 160F.
Drain the fat and liquid form the pan. Let stand for 5 minutes before serving.