Place oil in a 10-inch cast iron skillet; heat at 400 degrees for 5 minutes or until very hot.

Combine corn bread mix, egg, and buttermilk in a large bowl; stir until smooth. Stir in sausage. Pour into heated skillet; bake at 400 degrees for 25 to 30 minutes.

Place pie filling, sugar, and cinnamon in a small saucepan; cook over low heat, stirring constantly, until thoroughly heated. Spread over corn bread. Serve hot. Yield: 8 servings.