1

In a large saucepan of boiling water, cook the potatoes, uncovered, over moderate heat until tender - 10 to 12 minutes

2

Meanwhile, cook the bacon (if not using bacon bits) in skillet until crisp and brown. Drain on paper toweling and discard the drippings.

3

Drain the potatoes well and let cool for 10 minutes. Meanwhile, cover the bottom of a large platter with the lettuce. Arrange the potatoes in a broad band across the middle, then make rows of the turkey (or chicken), green pepper, and tomatoes on either side of the potatoes, alternating the colors. Crumble the bacon evenly over all.

For the dressing:

1

In a food processor or an electric blender, whirl the cheese, yogurt, vinegar, garlic, and black pepper for 1 minute or until smooth. Pour into a sauceboat and pass at the table.