Place the ground beef in a bowl and season with salt and pepper to taste. I also added 1 tablespoon of garlic powder (optional, adjust to your preference). Set aside.

Peel the onion and slice it thinly. Cut the red bell pepper into strips, then into small cubes. Dice the two hard-boiled eggs as well.

Heat oil in a skillet and sauté the vegetables. Once softened, add the ground beef and stir to combine.

Add the 6 tablespoons of tomato sauce and the chopped hard-boiled eggs to the skillet. Mix well.

Once the filling is ready, use it to fill the flour tortillas.

Place a piece of air fryer parchment paper in the air fryer basket. Put one tortilla on the bottom, add the filling, then place another tortilla on top. Seal the edges with a fork. Repeat with the remaining tortillas.

Set the air fryer to 400°F (200°C) and cook for 8–10 minutes.