Wash 4-5 pounds fish (swai, cod, halibut or rainbow trout). Place in large baking dish.
Melt 1/2 cup butter, 1-2 tablespoons dried parsley, 1 tablespoon dried dill (optional), juice of 1 lemon, 1 teaspoon fresh cracked black pepper, 1 teaspoon fresh ground salt, 1 tablespoon garlic powder.
Mix butter sauce together and pour evenly over fish. Cover fish with ovenproof lid or foil and bake at 350 degrees until fish is flaky and falling apart.
Serve with bread or rice and peas and carrots.