Prepare the salad: In a large salad bowl, toss the chopped Romaine lettuce with the croutons, olives, chicken and Parmesan cheese.
Make the dressing: In a bowl, whisk together the mayonnaise, minced garlic, lemon juice, Dijon mustard, Worcestershire sauce, and anchovies. Slowly drizzle in the olive oil while whisking until the dressing is smooth. Season with salt and pepper to taste.
Dress the salad: Pour the dressing over the salad and toss until the lettuce is well-coated.
Serve immediately: Garnish with extra Parmesan and freshly cracked black pepper, if desired.