Prepare grill and cook beef strips 4 to 6 minutes for medium rare, or to desired doneness, turning once. (Or simply use leftover grilled steak, cut into thin strips.) Place in a large bowl and toss with cucumber slices.
In another bowl, combine dressing ingredients and mix well. Add to beef and cucumbers and toss to coat. Arrange romaine leaves on a serving platter and spoon beef salad on top. Sprinkle green onions over the salad and serve room temperature or cold.
c.1998, M.S. Milliken & S. Feniger, all rights reserved