Marinate the Chicken. In a bowl, mix together the olive oil, lemon juice, garlic powder, onion powder, salt, and pepper. Place the chicken breasts in the marinade, ensuring they are evenly coated. Cover and refrigerate for at least 30 minutes.
Grill the Chicken. Preheat your grill to medium-high heat. Remove the chicken from the marinade and discard any excess. Grill the chicken breasts for 6-8 minutes per side or until cooked through and no longer pink in the center. Once cooked, remove from the grill and let them rest for a few minutes before slicing them into strips.
Assemble the Wraps. Warm the tortillas slightly to make them easier to fold. Lay each tortilla flat and add a layer of shredded lettuce to the center. Top with sliced grilled chicken, diced tomatoes, diced red onion, corn, black beans, shredded cheddar cheese, and a drizzle of ranch dressing.
Fold the Wraps. To fold the wraps, start by folding the bottom edge of the tortilla up over the filling. Then, fold in the sides, overlapping them slightly, and continue rolling until the filling is completely enclosed.
Serve and Enjoy. Serve the wraps immediately while still warm, and enjoy the delicious flavors of your homemade Grilled Chicken Wraps!