Add ground beef to into a skillet and cook until brown. Season with taco spice.
Dust in flour and roast briefly.
Blend in water. Simmer for a minute.
Take a 12” tortilla and top with half of the beef mixture.
Top with cheese, crushed nachos, tomatoes, onions, and lettuce.
Top with 6” tortilla.
Fold bottom edges towards the center.
Repeat with the remaining ingredients.
Put seam side down into the air fryer basket.
Cook for 4 minutes per side at 400F.