Cook beef, onion, 1 t. salt and pepper until meat is brown and onion tender.
Drain off fat, reserving 1 T.
Brush 6 individual casseroles (8 oz.) liberally with reserved drippings.
Stir parsley into meat mixture, set aside.
In a small bowl, beat eggs until foamy, about 1 ½ minute.
Add milk, flour, Worcestershire sauce and remaining salt and beat until smooth.
Using half the batter, fill each casserole about 1/3 full.
Spoon ½ C. meat mixture over batter in each casserole.
Top with remaining batter.
Bake at 400 degrees for 30-35 minutes or until golden.
Meanwhile prepare gravy mix according to pkg directions.
Serve with casserole.