Instructions

  1. Cut onion slices into quarters.
  2. Toss cucumber slices and onion together in a medium bowl.
  3. Stir sour cream, vinegar, salt and pepper into cucumber mixture until well blended.
  4. Let stand 5 minutes.
  5. Divide salad greens among four salad plates.
  6. Stir cucumber and onions again.
  7. Top each plate of greens with 1/4 of the cucumber mixture.