Pork Gravy over Mashed Potatoes

1 lb. diced pork
salt & pepper
1/3 C. flour
2 C. milk

Cut any fat off pork. Brown pork in skillet. Sprinkle flour over pork and stir until pork is coated. Add milk and bring to a boil, stirring constantly. Let simmer until thickened. Add salt & pepper to taste. Serve over mashed potatoes.