Cook the Beef: In a skillet over medium heat, cook the ground beef until browned. Add taco seasoning and a little water as directed on the seasoning package. Stir to combine and let simmer for a couple of minutes until fully cooked and flavorful.
Prepare the Taquitos: Lay the tortillas flat and spoon a small amount of the seasoned beef mixture into the center of each tortilla. Optionally, add shredded cheese on top. Roll each tortilla tightly to form taquitos.
Air Fry the Taquitos: Preheat your Air Fryer to 400°F (200°C). Place the rolled taquitos in the basket in a single layer, ensuring there's space between them for even cooking. Air fry for 8-10 minutes or until they are golden and crispy.