Instructions: Preheat oven to 350 degrees. Butter 13- by 9- by 2-inch baking pan. Arrange fillets in prepared pan. Sprinkle with salt and pepper.

Mix breadcrumbs and walnuts in processor. Using on/off turns, process until nuts are finely chopped. Transfer to bowl. Mix in butter, horseradish and mustard. Stir in cheese and parsley.

Gently press crumb mixture onto fillets. Drizzle 1 teaspoon olive oil over each. Bake until fillets are cooked through, about 15 minutes.

Preheat broiler. Broil fish until crust is golden, watching closely to avoid burning, about 2 minutes. Transfer to plates. Serve fish with Lemon-Dill Sauce.

This recipe yields 4 servings.

Comments: The chef at Kristinas makes this dish with haddock; we call for sea bass, which is more readily available.

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