Directions

1. Preheat grill to medium (300°F to 350°F). Grill grape clusters 15 minutes or until slightly soft, turning the clusters several times. Set aside.
2. Season chicken with salt and pepper to taste. Grill 5 minutes per side or until an instant-read thermometer registers 165°F. Remove from grill. Thinly slice or shred chicken and place in a medium bowl. Add wing sauce; toss to coat. Let cool.
3. Brush rolls with oil and place on grill, cut side down. Grill until just toasted.
4. In a medium bowl combine celery, blue cheese, mayonnaise, lemon juice, and salt and pepper to taste. Spread blue cheese mixture on cut side of rolls. Layer bottom halves of rolls evenly with chicken, grapes and lettuce. Cover with top halves of rolls, and serve.