In a skillet over medium-low heat, add the bacon and cook until crisp, stirring frequently (~ 5-7 minutes)
Blue Cheese Dressing
In a medium-sized bowl, add shallot, greek yogurt (or sour cream), buttermilk, chives, white wine vinegar, a strong pinch of sea salt, and a grind of black pepper
Whisk to combine
Fold in blue cheese crumbles
(Adjust the consistency with additional Greek yogurt or buttermilk, as needed)
Salad
Cut iceberg lettuce into 4 wedges (8 if they're going to be served as appetizers)
Place on plates and spoon the dressing over
Top with bacon, tomatoes, hard-boiled eggs, more crumbled blue cheese, and crumbled croutons