Place one tortilla in the air fryer basket. Top with cheese, chicken, and beans. Season with the cumin, chili powder, salt and pepper. Place the other tortilla on top. Set a metal trivet or metal measuring cup on top to weigh down the top tortilla. Spray the top with cooking oil.
Air fry at 350°F(175°C) for 5-8 minutes. When your desired crispiness is reached, carefully remove the quesadilla from the air fryer. Garnish with toppings and serve.
Notes
Since most small tortillas just barely fit in the air fryer basket, it's detrimental to try to flip it over halfway. That might mean that one side doesn't get a golden glow, but both sides will still get crispy, so I say there's no need to flip it over halfway.
If you can, shred your own cheese. Pre-shredded cheese often contains additives that can affect the taste and texture of the quesadilla.
Be sure to hold down the top tortilla to keep it from flying up into the heating element where it can easily burn and start a fire. I hold mine down with a metal trivet or metal measuring cup. You can poke it with a few toothpicks too, but that often doesn't work for me.
Depending on how big your tortillas are, the amount of your fillings may be larger or smaller. Feel free to change up the ingredients however you like.
All air fryers have different wattage and may cook at different rates. You may need to adjust the time or temp for the best results.