CARPINTERIA Calif. The Carl’s Jr. and Jack in the Box regional burger chains have both reached back to 2006 for their latest limited-time promotional offers. Carl’s is touting heat with its Jalapeno Chicken Sandwich, a riff on the Jalapeno Burger that debuted two years ago and later become a permanent menu item. Jack, meanwhile, is showcasing three versions of its Acapulco Chicken Salad, including one that’s topped with spicy chicken pieces.
Both LTOs are