1: Toast the brioche bun.
2: Season the cod.
3: Coat the cod in flour, then egg whites, and finally bread crumbs.
4: Air fry at 385°F for 10 minutes.
5: In a small bowl, mix the yogurt, mayo, dill, relish, and sweetener.
6: Once cooked, top the cod filet with cheese and tartar sauce.
7: Serve and enjoy!