Begin by arranging the chopped romaine lettuce in a large salad bowl or on a serving platter.
Arrange the diced chicken, crispy bacon crumbles, chopped hard-boiled eggs, diced avocado, diced tomatoes, crumbled blue cheese, diced cucumber, and sliced green onions (if using) on top of the lettuce in neat rows or sections.
Season the salad with salt and pepper to taste.
Drizzle ranch dressing (or your preferred dressing) over the top of the salad, or serve it on the side.
Serve immediately, allowing each person to mix their salad as they prefer, or you can toss everything together gently before serving.
Enjoy your delicious Cobb Salad as a satisfying meal!