Heat oven to 400 degrees F. Line a baking sheet with foil. Place uncooked bacon on foil. Bake for 15-20 minutes until bacon is crispy, flipping once. Transfer to a paper towel-lined plate. Once cool enough to handle, chop bacon.
Remove the outer layers of the lettuce head. Rinse lettuce and pat dry. Use a knife to remove the core of the lettuce. Chop the lettuce into bite-sized pieces.
Divide lettuce among 4 salad bowls. Drizzle each bowl with 2 tablespoons blue cheese dressing. Top with 1 tablespoon blue cheese crumbles, and 1/4 of the bacon. If desired add additional toppings like croutons. Serve immediately.
This recipe makes 4 side dish size servings or 2 meal size servings.