Instructions: Preheat oven to 350. Arrange fish in shallow baking dish. Salt and pepper liberally; cover with sliced onions and dot with butter. Bake 20 minutes or until fish flakes easily. Mix mayonnaise, mustard, lemon juice, and tobasco. Pour over fish and broil 2 to 3 minutes until brown and bubbly.

Sprinkle with parsley and serve hot with lemon wedges.

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