Substitute 4 boneless skinless chicken breasts (1 lb.) for the pork chops.
Substitute 1 cup thinly sliced fennel for the onions.
Look for apples that are firm and well colored with smooth, blemish-free skins. Varieties that are good for cooking uses include Cortland, Granny Smith, Jonathan, Fuji, Gravenstein, Empire, Jonagold, McIntosh, Pippin, Spy and Winesap.