Guava Punch

2 lb. Opakapaka 2 green onions 1 tablespoon grated ginger root 2 tablespoons butter or margarine, cut into small pieces 1/4 cup soy sauce Preheat electric oven to 400 F. Place fish in a shallow baking dish. Mince tops of onions. Put white portion, half of the ginger, and half of the butter into cavity…