MICROWAVE squash and water in microwaveable bowl on HIGH 9 min. or until squash is tender, stirring after 5 min. Drain; cover to keep warm.

MIX barbecue sauce, syrup and rosemary; set aside. Heat skillet sprayed with cooking spray on medium-high heat. Add chops; cook 2 to 3 min. or until bottoms of chops are browned. Turn over. Add half the barbecue sauce mixture; cook 7 to 8 min. or until chops are done (160ºF) and evenly coated with glaze, turning occasionally.

ADD remaining barbecue sauce mixture to squash; mash until smooth and well blended. Top with cheese. Serve with chops.