Make moist and flavorful banana bread in your Ninja Air Fryer. Mash ripe bananas and mix them with flour, sugar, eggs, and your preferred spices. Pour the batter into a greased loaf pan that fits inside the air fryer basket. Preheat the air fryer to 320°F and bake the banana bread for 30-35 minutes until a toothpick inserted in the center comes out clean. Enjoy a slice of warm banana bread as a comforting snack or breakfast.