Instructions

  1. Preheat oven to 450°F.
  2. Combine the oil, lemon juice, marjoram, garlic salt, dry mustard, and pepper.
  3. Pour over halibut; marinate 20 minutes, turning once.
  4. Transfer fish to buttered baking dish.
  5. Sprinkle with cheese and onions.
  6. Bake 15 minutes or until done.