A more appropriate question would be what foods can’t you cook in an air fryer?  Any food that can be cooked in a conventional, convection oven, or grill can technically be cooked in an air fryer.  I’ve even heard of people baking cakes in an air fryer.  It comes down to how adventurous you are. I haven’t tried it myself.  In general though, if it’s a pre-processed, frozen food, it excels in an air fryer,