Soak the cedar board in water for at least 30 minutes.

Heat a grill over high heat.

Sprinkle a board with olive oil. Add the fish to the board and top with desired sauce or seasonings.

Add the prepared board to the grill, then turn the temperature to low and shut the lid of the grill.

Cook the fish until it is cooked through and flakes with a fork. 15-20 minutes, depending on the thickness of the fish.