Take it from experience of summers down on the East Coast - this would have to be one of the best ways to eat fresh fish!
Dip (freshly caught) Hapuka steak in flour and sprinkle with lemon pepper. Pan fry both sides in butter for 2-3 minutes depending on the thickness of the steak. Turn heat down and cover with a dish for 5 minutes until cooked through or if you need to make room for the sausages then transfer to an oven at 150 degrees.