Season the steaks with salt and pepper; charbroil the steaks to desired temperature. While the steaks are cooking prepare the salad. Cut the head of iceberg into quarters, remove the core. Place one section of the lettuce onto each plate. Top with sliced tomatoes, red onion, and black olives. Slice the sirloin and place next to the lettuce, drizzle with the basil vinaigrette and sprinkle the whole dish with Blue cheese. Season with salt and pepper to taste.