Season chicken breasts with salt and pepper, then grill over medium-high heat for 5-7 minutes per side until internal temperature reaches 165°F (74°C).
Let the chicken rest for 5 minutes before slicing into thin strips.
In a small mixing bowl, whisk together Greek yogurt, Caesar dressing, lemon juice, minced garlic, and black pepper until smooth.
In a large bowl, combine the chopped romaine lettuce, sliced chicken, and grated Parmesan cheese.
Pour the dressing mixture over the salad components and toss thoroughly to ensure even coating.
Lay the tortillas flat and distribute the chicken caesar mixture evenly across the center of each.
Fold in the sides of the tortillas and roll tightly from the bottom to form a wrap.
Optional: Place the wraps seam-side down on a hot skillet for 1 minute to seal and add texture.