Optional: lemon wedges, blue cheese crumbles, salt, and pepper
Instructions
For the Blue Cheese Dressing
In a small bowl, combine sour cream, mayonnaise, crumbled blue cheese, parsley, dill weed, lemon juice, and pepper. Stir together, pressing the blue cheese against the side of the bowl to release flavor into the dressing. Taste, and season as needed.
To Assemble
Wash, dry, and drain lettuce heads. Slice lengthwise in half.
Top each half with blue cheese dressing, tomatoes, bacon, and croutons.
If desired, add additional blue cheese crumbles, salt and pepper, and a squeeze of fresh lemon over the top.