In a mixing bowl, whisk together the mayonnaise, garlic, lemon juice, dijon mustard, salt, and Worcestershire sauce until well combined. Stir in the grated parmesan cheese and set aside.
In a large bowl, toss the chicken in garlic powder, onion powder, and Italian seasoning and set aside.
Heat the remaining 2 tbsp oil in a grill pan or skillet over medium heat. Add the chicken, and cook for 6-7 minutes per side, or until cooked through and the chicken reaches 165 degrees. Set aside on a plate and allow to cool. Once cooled, slice the chicken.
Toss the lettuce in the caesar dressing, then top with chicken, tomatoes, and croutons. Sprinkle with parmesan cheese shavings. Serve!
Serving: 1/2 of recipe, Calories: 519kcal, Carbohydrates: 26g, Protein: 27g, Fat: 34g, Cholesterol: 65mg, Sodium: 1051mg, Fiber: 5.5g, Sugar: 5.4g