In a bowl mix together seasonings. You don't have to use this sweet and savory mixture but it is great. Alternatively you could just sprinkle with salt and pepper.
Pat filets dry with paper towels. Sprinkle seasoning on top, gently pat down. Turn over and sprinkle on other sides.
Preheat air fryer to 370 degrees F for 5 minutes.
Put steaks in basket without overlapping. Close drawer and cook for 8 minutes, then flip and continue cooking for 4 minutes for medium well done for a thinner fillet steak, or medium for mignon that is thicker.
Allow to rest for 5 minutes before slicing. ** Note, timing will depend a lot on how thick your pieces are and how well done you like your meat.