1/4 cup mayonnaise
1 tablespoon prepared Dijon-style mustard
1 tablespoon prepared horseradish
1 tablespoon fresh lemon juice
1/4 cup dry bread crumbs
1 tablespoon grated Parmesan cheese
4 (4 ounce) fillets halibut

1 tablespoon margarine, melted
1/4 cup dry bread crumbs
1 tablespoon grated Parmesan cheese

Preheat oven to 350
Lightly grease a baking sheet.
In a small bowl, mix together mayonnaise, mustard, horseradish, and lemon juice. Stir in 1/4 cup bread crumbs and 1 tablespoon Parmesan cheese. Arrange fish fillets on the prepared baking sheet. Spread bread crumb mixture evenly over fish.
In a small bowl, mix together melted margarine, 1/4 cup bread crumbs, and 1 tablespoon Parmesan cheese. Sprinkle over the coated halibut.
Bake for 15 to 18 minutes, or until fish flakes easily with a fork.

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