In a bowl combine salt, seasoned salt, paprika and minced onion. Rub all sides of meat with the mixture. In a crock pot, combine seasoned beef with onion and stock. Cover and let cook on low for 8 to 10 hours or 1 hour in a pressure cooker, or until meat is tender. Remove from pot and slice.
If gravy is preferred thicken juices with flour dissolved in a small amount of cold water after removing meat from pot. Otherwise serve with pan juices.