The Prophet ﷺ said, "When your servant brings your food to you, if you do not ask him to join you, then at least ask him to take one or two handfuls, for he has suffered from its heat (while cooking it) and has taken pains to cook it nicely."  

عَنِ النَّبِيِّ ﷺ قَالَ إِذَا أَتَى أَحَدَكُمْ خَادِمُهُ بِطَعَامِهِ فَإِنْ لَمْ يُجْلِسْهُ مَعَهُ فَلْيُنَاوِلْهُ أُكْلَةً أَوْ أُكْلَتَيْنِ أَوْ لُقْمَةً أَوْ لُقْمَتَيْنِ فَإِنَّهُ وَلِيَ حَرَّهُ وَعِلاَجَهُ