بِسْمِ اللَّهِ أَوَّلَهُ وَآخِرَهُ
Bismillahi awwalahu wa akhirah
In the Name of Allah, at its beginning and at its end.
The Prophet ﷺ said: "When one of you eats, let him mention the Name of Allah. If he forgets to mention the Name of Allah at the beginning, let him say: 'Bismillahi awwalahu wa akhirah.'" Forgetting is human — Islam doesn't punish you for it. Instead, it gives you a recovery phrase that retroactively covers the entire meal.
Related Du'as
الْحَمْدُ لِلَّهِ الَّذِي جَعَلَهُ عَذْبًا فُرَاتًا بِرَحْمَتِهِ وَلَمْ يَجْعَلْهُ مِلْحًا أُجَاجًا بِذُنُوبِنَا
Praise be to Allah who made it sweet and fresh by His mercy, and did not make it salty and bitter because of our sins.
Atharبِسْمِ اللَّهِ وَعَلَى بَرَكَةِ اللَّهِ
In the Name of Allah, and with the blessings of Allah.
Sahihاللَّهُمَّ بَارِكْ لَنَا فِيمَا رَزَقْتَنَا
O Allah, bless us in what You have provided us.
Sahihاللَّهُمَّ بَارِكْ لَنَا فِيهِ وَزِدْنَا مِنْهُ
O Allah, bless it for us and give us more of it.
Hasan