Season the chicken breasts with olive oil, garlic powder, Italian seasoning, paprika, salt, and black pepper.Heat a grill pan or skillet over medium-high heat and cook the chicken for 6–7 minutes per side, or until the internal temperature reaches 165°F (74°C).Transfer the chicken to a plate and let it rest for 5 minutes before slicing.Meanwhile, whisk together all of the Caesar dressing ingredients in a small bowl until smooth.Place the chopped romaine lettuce in a large serving bowl.Add the croutons and shaved Parmesan cheese.Drizzle with the Caesar dressing and toss gently to coat.Arrange the sliced grilled chicken on top.Finish with extra Parmesan, freshly cracked black pepper, and lemon wedges if desired.