Preheat the air fryer: Set it to 375°F (190°C) for 3–5 minutes. A preheated basket helps the tortilla crisp quickly.
Whisk the eggs: In a small bowl, whisk eggs with milk or water, plus a pinch of salt and pepper.
Add smoked paprika or chili powder if you like a little kick.
Scramble the eggs: Heat butter or oil in a nonstick skillet over medium. Pour in the eggs and gently scramble until just set—soft and slightly glossy. Remove from heat so they don’t overcook later.
Assemble the quesadilla: Lay the tortilla on a cutting board.
Sprinkle half the cheese on one half of the tortilla. Add scrambled eggs, cooked meat, and any veggies. Top with the remaining cheese.
Fold the tortilla over to create a half-moon shape.
Oil lightly: Spray or brush both sides of the folded quesadilla with a light coat of oil. This helps with browning and keeps the edges from drying out.
Air fry: Place the quesadilla in the air fryer basket. Cook at 375°F (190°C) for 5–7 minutes, flipping halfway.
It’s done when the tortilla is crisp and golden and the cheese is fully melted.
Rest and slice: Let it sit 1–2 minutes to set the cheese. Cut into wedges and serve with salsa, hot sauce, or sliced avocado.