Before eating

When anyone of you begins eating, say: Bismillāh. And if you forget then when you remember, say: Bismillāhi fī awwalihi wa ākhirih. When anyone of you begins eating, say: With the Name of Allah. And if you forget then, when you remember, say: With the Name of Allah, in the beginning, and in the end. Reference: Abu Dawud 3/347, At-Tirmidhi 4/288. See Al- Albani's Sahih At-Tirmidhi 2/167.
Whomever Allah has given food, should say: Allāhumma bārik lanā fīhi, wa aṭ`imnā khayran minh. Whomever Allah has given milk to drink, should say : Allāhumma bārik lanā fīhi, wa zidnā minh. Whomever Allah has given food, should say: O Allah, bless us in it and provide us with better than it. Whomever Allah has given milk to drink, should say : O Allah, bless us in it and give us more of it. Reference: At-Tirmidhi 5/506. See also Al-Albani, Sahih At-Tirmidhi 3/158.