Jami` at-Tirmidhi Book 25, Hadith 74
That he entered upon the Messenger of Allah (ﷺ) while he has some food. He said: "Sit down O my son! Mention Allah's Name and eat with your right hand, and eat what is nearest to you."
It has been reported from Hisham bin 'Urwah, from Abu Wajzah As-Sa'idi, from a man from Muzainah, from 'Umar bin Abu Salamah. The Companions of Hisham bin 'Urwah differed in reporting this Hadith. Abu Wajzah As-Sa'di's name is Yazid bin 'Ubaid.
That the Messenger of Allah (ﷺ) said: "Take the 'Asha' meal, even if it is just with a handful of something to fill. For indeed avoiding the 'Asha' is from senility."
This Hadith is Munkar, we do not know of it except from this route. 'Anbasah was graded weak is Hadith. 'Abdul-Malik bin 'Allaq is unknown.
From 'Aishah that the Messenger of Allah (ﷺ) said: "When one of you eats food, then let him say: 'Bismillah.' If he forgets in the beginning, then let him say: 'Bismillah Fi Awwalihi Wa Akhirih (In the Name of Allah in its beginning and its end.)"