Balsamic Roasted Sweet Potatoes & Apples

large sweet potato (1 lb./450 g), peeled, cut into 3/4-inch chunks

small red onion , cut into 3/4-inch chunks

brown sugar

fresh sage leaves

<i>Kraft </i>Extra Virgin Olive Oil Aged Balsamic Vinaigrette Dressing

Granny Smith apple , cut into 3/4-inch pieces