Brown the pork in skillet; drain off excess fat.
Add water, onion, crumbs, and seasonings.
Simmer, covered, 30 minutes, stirring occasionally.
Line 9-inch pie plate with pastry.
Turn meat mixture into crust.
Adjust top crust; seal.
Cut slits in top for escape of steam.
Bake at 400° till crust is golden brown, about 35 minutes.