For the Dressing: Place 1 cup of yogurt, basil, parsley, chives, lemon juice, honey and pepper in a blender or food processor. Cover and pulse until smooth (dressing will be green in color). Pour yogurt mixture into a medium bowl; stir in remaining yogurt and mayonnaise until just blended; refrigerate until ready to serve.
For the Salad: Place lettuce at the bottom of a bowl and sprinkle the tomatoes, onion, cucumber, chicken strips, bacon bits, egg and Colby cheese on top. Just before serving, pour dressing over salad and toss lightly.