Warm up air fryer to 350°F (180°C). Spray basket with cooking spray.
Spread tomato sauce onto mini bagel halves
Top each bagel half with shredded mozzarella cheese and chopped pepperoni
Place bagel halves in air fryer backet, ensuring they don’t touch or pile up (you may need to split the bagels into batches)
Cook for 5 minutes, until bagel bites are toasted and mozzarella is melted
Remove from air fryer. Sprinkle with salt and black pepper, and garnish with chopped fresh basil.
Serve and enjoy immediately