**Prepare the Chicken:**
- Season chicken breasts with salt, pepper, and garlic powder.
- Grill or sear in a skillet over medium-high heat for 5-6 minutes per side until cooked through (165°F internal temperature).
- Let the chicken rest for 5-10 minutes, then slice thinly.
**Prepare the Lettuce:**
- Wash and dry romaine lettuce. Tear it into bite-sized pieces.
**Make the Caesar Dressing:**
- In a bowl, mix together Parmesan cheese, mayonnaise, lemon juice, olive oil, and garlic. Whisk until smooth. Adjust seasoning with salt, pepper, and Worcestershire sauce if desired.
**Assemble the Salad:**
- In a large bowl, toss romaine lettuce with Caesar dressing until well-coated.
- Top with sliced chicken and sprinkle with extra Parmesan cheese.
- Serve immediately, or store dressing and chicken separately for meal prep.