بِسْمِ اللَّهِ أَوَّلَهُ وَآخِرَهُ
Transliteration
Bismillahi awwalahu wa akhirah
English meaning
In the name of Allah, at its beginning and at its end.
When is it recited?
Recited when one remembers after starting to eat without saying Bismillah.
Source
Abu Dawud, At'ima 15, 3767; Tirmidhi, At'ima 47, 1858