Prepare the filling

• Beat the eggs in a bowl with the salt and pepper.
• Stir in the chopped onion, drained tuna, halved cherry tomatoes, diced sweet pepper and chopped parsley.

Line the air fryer basket

• Place the tortilla in the air fryer basket, pressing it down so it forms a shallow bowl with slightly raised edges.

Fill the tortilla

• Pour the egg and tuna mixture into the tortilla.
• Scatter the mini mozzarella balls and grated cheese on top.

Air fry

• Cook at 180 °C until the eggs are set and the cheese is melted and golden.

Serve

• Let it cool slightly, then slice and serve warm.