Cut a 1" cube of salt pork in 5 slices and then cut each slice in 4 pieces.
Combine pork with sugar, cinnamon, nutmeg and salt. Sprinkle over apples.
Roll pastry into square ½" larger than top of pan. Place over apples. Fold pastry under and flute against inside edge of pan. Cut steam vents in top.
Bake in hot oven (425°F.)50 minutes, or until apples are tender. (Cover top crust with foil if it starts to brown too much.) Serve warm or cold with cheese.