Season the fish with salt and pepper.

Heat a large pan over medium high heat.

Add the butter and olive oil.

Once hot, add the fish and cook for about 3-5 mins each side.

Remove the fillet onto a plate.

Add the garlic, lemon slices and juice, and a little minced parsley. Stir to prevent sticking.

After about 2 mins, take the pan off the heat and pour the sauce over the fish.

Add extra parsley to serve.