Yep. You can even fry them. Use healthy fats like olive oil, coconut oil, butter. For the "breading" you can use several things: peanut flour, coconut flour, nut flour like almond or hazelnut flour. You can use crushed up pork rinds. You can first dip your fish in egg and then give it a quick roll in either grated cheese or dried coconut. The only limits are your imagination.