Heat a large nonstick skillet over medium-high heat. Sprinkle 1/4 teaspoon salt evenly over both sides of pork. Add 1 teaspoon butter to pan, stirring until butter is melted. Add the pork to pan, and cook pork for 3 minutes on each side. Remove pork from pan, and keep warm.
Combine low-fat milk and flour, stirring with a whisk. Add the milk mixture to pan, stirring with a whisk. Stir in remaining 1/2 teaspoon salt, poultry seasoning, and black pepper. Return pork to pan. Cover; reduce heat, and simmer for 7 minutes or until gravy is thick and pork is done.
While pork cooks, prepare potatoes according to package directions. Serve with pork.