Begin by cooking the bacon. In a frying pan over medium heat, fry the bacon until crispy, about 5-7 minutes. Once cooked, place the bacon on a paper towel to drain excess grease, and then chop it into bite-sized pieces.
In a large salad bowl, add the mixed salad greens.
Rinse the blackberries under cold water and gently pat them dry. Add the blackberries to the bowl with the greens.
Sprinkle the crumbled blue cheese and chopped bacon over the salad.
If using, add the chopped walnuts for extra crunch.
Drizzle the balsamic vinaigrette dressing over the salad. Gently toss the salad to combine all ingredients.
Season with salt and pepper to taste. Serve immediately, ensuring each person gets a good mix of ingredients in their serving.
If you prefer a different dressing, consider using honey mustard or a red wine vinaigrette.
Feel free to substitute blue cheese with feta or goat cheese if desired.
Consider adding other toppings like sliced almonds or avocado for variation.