Spread walnuts in shallow pan. Bake in 350F oven about 10 minutes, stirring several times. Toss with oil, marjoram and seasoned salt; set aside to cool. Combine chili sauce with vinegar and mustard; mix well. Pour over beef, mushrooms and pimiento strips; refrigerate up to 2 hours.
At serving time, line individual serving plates with lettuce leaves. Shred remaining lettuce and arrange over leaves. Portion beef mixture over lettuce. Sprinkle with seasoned walnuts nuts. Serve with Horseradish Cream, if desired.
Makes 4 servings.
Combine 1/2 cup dairy sour cream and 1 tbs prepared horseradish; mix well and chill.
Cajun Country -- New Iberia, Louisiana