In a food processor, process the parsley, onion and garlic until finely chopped. Thermomix 10 seconds, speed 4.
Add the fish, seasoning, lemon and zest and process to a rough paste. Thermomix 15 seconds, speed 5. If you don't have a processor, you can dice the ingredients finely and squeeze together with your hands.
Roll with wet hands into patties.
Dip into the sesame seeds and set aside (refrigerate) until ready to cook.
Over a moderate to a high burner, heat enough coconut oil, butter, ghee or macadamia nut oil to coat the bottom of your pan.
Cook the fish cakes for about 3-4 minutes on each side or until just brown.