Begin by prepping your chicken—cut the chicken breasts into strips about 1 inch wide for easy cooking and even distribution in the wraps.
To Grill the Chicken: Lightly spray a skillet with nonstick cooking spray and heat it over medium-high. Add the chicken strips to the skillet, and cook them for 12-15 minutes, turning occasionally, until golden brown and fully cooked (juices should run clear).
Add the water to the skillet with the cooked chicken, bringing it to a boil. Then, stir in the cooked rice, cover, and remove it from the heat to let it rest for 5 minutes.
Blend in the ranch-style salad dressing, stirring evenly to coat the chicken and rice mixture.
To Make Crispy Fried Chicken: Pour buttermilk into a shallow dish, and mix flour, salt, and black pepper in another dish. Dip chicken strips into the buttermilk, then dredge in the flour mixture until fully coated.
Heat vegetable oil in a skillet over medium heat (350°F/175°C). Fry the chicken strips for about 3 minutes on each side until golden and crispy. Place them on a paper towel-lined plate to drain excess oil.
Combine the fried chicken strips with the cooked rice pilaf, tossing to coat them in the ranch dressing mixture.
Warm the tortillas in the microwave or skillet to make them pliable. Then, start assembling: place shredded lettuce, chicken and rice mixture, and diced tomatoes into the center of each tortilla.
Fold in both sides of the tortilla, and roll tightly from bottom to top to secure the filling. Slice each wrap diagonally and serve warm.