Sprinkle chicken with poultry seasoning. Lightly coat the grill rack with cooking oil.
Grill chicken, covered, over medium heat or broil 4 in. from the heat for 4-7 minutes on each side or until a thermometer reads 165°. Top with bacon and cheese; cover and cook 1-2 minutes longer or until cheese is melted.
Serve on buns with lettuce, onion, tomato and pickles if desired.