It was narrated from Abu Umamah Al-Bahili that when his food, or whatever was in front of him was cleared away, the Prophet (ﷺ) used to say: “Al-hamdu lillahi hamdan kathiran tayyiban mubarakan ghaira makfiyyin wa la muwadda’in wa la mustaghnan ‘anhu, Rabbana (Praise is to Allah, abundant good and blessed praise, a never-ending praise, a praise that we will never bid farewell to and an indispensible praise, He is our Lord).”
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ إِبْرَاهِيمَ، حَدَّثَنَا الْوَلِيدُ بْنُ مُسْلِمٍ، حَدَّثَنَا ثَوْرُ بْنُ يَزِيدَ، عَنْ خَالِدِ بْنِ مَعْدَانَ، عَنْ أَبِي أُمَامَةَ الْبَاهِلِيِّ، عَنِ النَّبِيِّ ـ صلى الله عليه وسلم ـ أَنَّهُ كَانَ يَقُولُ إِذَا رُفِعَ طَعَامُهُ أَوْ مَا بَيْنَ يَدَيْهِ قَالَ " الْحَمْدُ لِلَّهِ حَمْدًا كَثِيرًا طَيِّبًا مُبَارَكًا غَيْرَ مَكْفِيٍّ وَلاَ مُوَدَّعٍ وَلاَ مُسْتَغْنًى عَنْهُ رَبَّنَا " .
sunnah.com