Mixing low-fat yogurt and blue cheese crumbles cuts back drastically on the fat in most store-bought blue cheese dressings.
In a bowl, combine yogurt with blue cheese, kosher salt, and black pepper; mix well. Crumble bacon; set aside. Cut lettuce into quarters; slice small wedges from each quarter. Place wedges on plates or napkins, and top each with a dollop of blue cheese mixture and some crumbled bacon.