Meat Served in Guru Angad Dev Ji's Langar
When Bibi Amaro went with her uncle-in-law to meet, Amar Das, to meet Guru Angad, they were taken to eat Langar, Mehima Prakash (1776 CE) describes it as follows:
ਲੇ ਚਲੇ ਸਾਥ ਲੰਗਰ ਕੇ ਮਾਹਿ । ਸੰਗੀ ਸਗਲ ਬੁਲਾਏ ਤਾਹਿ ।
They were taken to the Langar [Bibi Amaro and Amardas], and Guru Angad called all the attendants [to serve them].
ਮਾਸ ਭਇਓ ਸਿਧ ਰਸੋਈ । ਅਵਰ ਦਾਲ ਭਾਤ ਭੀ ਹੋਈ ।
Amongst the food was meat and other types of lentils as well.
The text mentions how Guru Angad also ate with them, the text describes it by saying:
ਜਬ ਮਹਾਂ ਪ੍ਰਸਾਦਿ ਸਤਿਗੁਰ ਕਾ ਖਾਇਆ । ਮਹਾਂ ਅਨੰਦ ਪ੍ਰਕਾਸ ਹੋਇ ਆਇਆ ।
When Guru Angad ate the Maha-Prashad [the meat sacrament], he was filled with great bliss.
ਸਤਿਗੁਰ ਪ੍ਰਸਾਦਿ ਮਹਿਮਾ ਕਿਆ ਕਹੈ । ਜੋ ਪਾਵੈ ਸੋਈ ਸੁਖ ਲਹੈ ।
What can one say about the Prasad [sacrament's] of the True Guru, whoever has enjoyed it has attained its bliss.
Mehima Prakash (1776 CE), Sakhi 9, page 111