In a large mixing bowl stir together the chicken, apple, celery, raisins and green onion. In a small bowl combine the yogurt and ranch salad dressing. Pour over the chicken mixture, toss gently to coat. Arrange the lettuce leaves on half of the bread slices. Spread the chicken mixture on the lettuce. Top with the remaining bread. Makes 4 servings.

322 calories, 29 g protein, 38 g carbohydrate, 8 g fat