Add the ground beef to a medium skillet over medium heat and crumble the beef as it cooks.
Drain the grease and stir in the taco seasoning and ¼ cup of water. Continue cooking on medium heat until most of the liquid has evaporated.
Place 4 tortillas on a microwave safe plate and top with a damp paper towel. Microwave for 20 seconds.
Fill each tortilla with a few tablespoons of beef and cheese and fold to close.
Spritz your air fryer basket with oil spray and place tacos in the basket in a single layer. We’re able to fit 4 tacos in our basket at a time. Spritz with oil spray.
Cook at 400 for 6 minutes. Tortillas will crisp further after they are removed from the air fryer.
Repeat steps 3 through 6 for remaining tacos, keeping tacos warm in the oven while you cook the remaining batches.
Notes
Fill each tortilla with lettuce, diced tomatoes, and onion before serving, if desired.