Place your air fryer on a flat surface and preheat it for 2 minutes at 350 degrees Fahrenheit.
Once hot, spray the air fryer basket with cooking spray. Lay one tortilla on the bottom, add your shredded cheese, and then your filling of choice. Top with another tortilla and spray the top lightly with oil.
Replace your air fryer basket and cook at 350 degrees Fahrenheit for 8 minutes. Flip your quesadilla half way through cooking or when your air fryer tells you.