Preheat your grill or skillet over medium heat.
Season chicken breasts with salt, pepper, and a drizzle of olive oil.
Grill the chicken for about 6-7 minutes on each side until cooked through.
Remove the chicken from the grill and let it rest for 5 minutes.
Chop the romaine lettuce and place it in a large bowl.
Cut the grilled chicken into slices.
Add the sliced chicken on top of the lettuce.
Sprinkle croutons and grated Parmesan cheese over the salad.
Drizzle Caesar dressing over the entire salad and toss gently to combine.
Serve immediately, garnished with additional Parmesan if desired.