Brown ground pork and chopped onion, stirring and breaking up pork.  Add spices and salt and pepper.  Simmer, uncovered, for 45 minutes, stirring occasionally.  Preheat oven to 375 degrees.  Prepare pie dough for 2-crust pie.  Line 9" pie plate with half of the rolled-out dough.  Drain pork and stir bread crumbs into pork.  Taste and add more salt and pepper if desired.  Fill pie with pork mixture and top with second half of the rolled-out dough.  Crimp edges of pie and slit the top in several places.  Bake in 375-degree oven for one hour, covering edges of pie crust with foil if necessary.  Serve hot or cold.