PLACE squash on microwaveable plate; brush cut sides with 1 Tbsp. of the dressing. Microwave on HIGH 10 min. or until tender, rotating plate after 5 min. Cut into wedges.
MEANWHILE, mix remaining 2 Tbsp. dressing and gingerroot until well blended; set aside. Heat oil in large skillet on medium-high heat. Cook chops 3 min. on each side; move to 1 side of skillet. Reduce heat to medium-low; add dressing mixture. Stir in water. Turn chops to coat in sauce.
SIMMER 4 min; turn chops over. Add squash wedges, turning to coat in sauce; simmer 3 min. or until chops are cooked through and sauce is thickened. Spoon sauce over chops and squash.