Cajun Chicken Sandwiches

6 boneless skinless chicken breast halves (4 oz each)
1 Tbsp olive oil
1/2 tsp celery salt
1/2 tsp garlic salt
1/2 tsp lemon-pepper seasoning
1/4 tsp cayenne pepper
1/4 tsp paprika
1/4 tsp pepper
6 kaiser rolls, split and toasted
12 slices tomato
6 lettuce leaves

Flatten chicken to 1/2" thickness.  Brush both sides with oil.  Combine the seasonings and rub over both sides of chicken.  Arrange in a 9x13 baking dish.  Cover and refrigerate for at least 2 hours or overnight. 

Coat grill rack with nonstick cooking spray before starting the grill.  Grill, covered, over medium heat for 3-5 minutes on each side or until chicken juices run clear.  Serve on rolls with tomato and lettuce.