HEAT oven to 450ºF.
COMBINE first 5 ingredients; spread onto bottom of 15x10x1-inch pan sprayed with cooking spray. Cover tightly with foil sprayed with cooking spray.
BAKE 20 min.; turn potatoes. Add apples; spread to evenly cover bottom of pan. Bake, covered, 10 min.
STIR potato mixture; bake, uncovered, 5 min. or until potatoes are tender and lightly browned. Discard sage leaves before serving.