Cut each sheet of pastry into 4 squares. Gently press pastry squares into 12 x 1/3 cup capacity greased muffin pans, gently pressing pastry folds together.
Combine chicken, Edgell Corn Kernels, bacon, cheese, eggs, mustard, sour cream, chives and pepper in a bowl. Mix well. Spoon the mixture evenly into pastry cases.
Bake in a preheated oven at 200°C for 20-25 minutes or until golden. Stand for 5 minutes before serving.