If you learn how to make your own patties from scratch it's pretty cheap - or to save time you can do what I do and eat beans directly from the air fryer š¤¤
I actually just rinse off canned beans, spray them with vegetable oil, toss em in at 400F for 8-12 minutes, then shake them in a baggie with salt and spices. Or mix them in a bowl with hot sauce. Or use them as a topping for rice. Or throw them in stir fry. Or sauteed onions and bell peppers, then put them on tortillas.