You are here: Home » Recipes » Fish and Horseradish Mustard Sauce Fish and Horseradish Mustard Sauce Recipe by Jeff WolfeKitchen Tested Yield 6 to 8 servings The horseradish and dry mustard give this low-calorie bite and the Parmesan cheese and dill round out the flavor. PrintEmail Ingredients 2 pounds fish filets (trout, snapper) Salt and pepper to taste1/2 cup plain nonfat yogurt1 teaspoon cornstarch1 tablespoon prepared horseradish1 tablespoon dry mustard1/4 cup grated Parmesan cheese2 tablespoons lemon juice1 teaspoon dried dill weed1 tablespoon capers, drained Instructions Preheat the oven to 350F. Season the filets with salt and pepper. In a small bowl, combine the yogurt, cornstarch, horseradish, dry mustard, Parmesan cheese, lemon juice, dill and capers. Dip each filet in the sauce and lay in a baking dish coated with nonstick cooking spray. If extra sauce, spread over fish. Bake for 15 to 20 minutes, or until the fish flakes with a fork.