This is chanted before meals in both Rinzai and Soto Zen monasteries.
Gokan-no-ge: the Five Rememberances

This meal arises from the labour of all beings,
may we remember their offering.
Delusions are many, attention wanders,
may we justify this offering.
Greed arises from self-cherishing,
may we be free in moderation.
This offering sustains us, gives us strength,
may we be grateful.
We use this strength and attain the Way.
Prajnaparamita!

(for cleanup)
OM MAKURASAI SOWAKA

Eko or dedication

This is as the boundless sky,
a lotus flowering above the water.
Stainlessness is itself this mind;
in this Awakening we stand exposed.