Trim excess fat from beef. In shallow dish, combine marinade ingredients, using 2 of the tbsp. of oil. Reserve 1/4 cup marinade to toss with vegetables. Add beef, turning once to coat. Cover; marinate in refrigerator 1 hour. Refrigerate reserved marinade. Remove beef from marinade. Place in shallow baking pan. Pour any leftover marinade onto beef. Bake @ 450 degrees 10 to 15 minutes or until desired degree of doneness. Meanwhile, saute onion and mushrooms in remaining tbsp. oil 2 to 3 minutes. In small saucepan, heat reserved marinade 2 to 3 minutes until warmed. Pour in large bowl; toss in torn lettuce, sauteed onions and mushrooms. Arrange serving platter with lettuce leaves. Carve steak diagonally into thin slices; fan onto lettuce leaves. Place onion rings and mushrooms along and over beef slices. Pour any remaining marinade ( from vegetable toss) over beef. Place artichoke on 1 side of platter with lemon and orange slices around it, forming a flower effect. Makes 6 servings.