Preparation:

Season chicken breast with salt and pepper and grill until cooked, approximately 6 to 8 minutes per side. While chicken is cooking, wash, rinse, and drain lettuce. Cut lettuce in four pieces lengthwise and then cut into strips. 

Make dressing by mixing mayonnaise, lemon juice, Worcestershire sauce, garlic, cheese, milk, and salt and pepper with a whisk in a bowl. 

When chicken is finished cooking, let it rest for 5 minutes. Slice chicken to desired thickness (approx. ½-inch). To serve, toss lettuce in the dressing and serve equal portions on four plates. Top with chicken slices.