Here’s a story from the vinaya about the Buddhist laywoman Suppiyā offering meat: (Kd6)
9. Discussion of the prohibition against human flesh
When the Buddha had stayed at Rājagaha for as long as he liked, he set out wandering toward Benares. When he eventually arrived, he stayed in the deer park at Isipatana.
At that time in Benares there were two lay-followers, Suppiya and Suppiyā, husband and wife, both with confidence in Buddhism. They were donors and benefactors, and they attended on the Sangha.
On one occasion Suppiyā went to the monastery. She walked from dwelling to dwelling, from yard to yard, asking the monks, “Is anyone sick? What may I bring?” Just then a certain monk had drunk a purgative. He told Suppiyā about this, adding, “I need meat broth.” “No problem, I’ll organize it.”
She then returned to her house and told a servant, “Go and get some meat.” Saying, “Yes, madam,” he walked around the whole of Benares, but could not find any.
So he returned to Suppiyā and said, “There’s no meat, madam. There’s no slaughter today.”
Suppiyā thought, “If that monk doesn’t get meat broth, his illness will get worse or he’ll die. Because I’ve already agreed to provide it, it would not be right if I didn’t.” She then took a knife, cut flesh from her own thigh, and gave it to a slave, saying, “Prepare this meat and give it to the sick monk in such-and-such a dwelling. If anyone asks for me, tell them I’m sick.” She then wrapped her thigh in her upper robe, entered her bedroom, and lay down on the bed.
When Suppiya returned home, he asked the slave where his wife was. The slave told him.
He then went to see her, and she told him what had happened. He thought, “It’s astonishing and amazing how much faith and confidence Suppiyā has, in that she gives up even her own flesh. Is there anything she would not give?”
Delighted and joyful he went to the Buddha. He bowed, sat down, and said, “Venerable Sir, please accept tomorrow’s meal from me together with the Sangha of monks.” The Buddha consented by remaining silent. Knowing that the Buddha had consented, Suppiya got up from his seat, bowed down, circumambulated the Buddha with his right side toward him, and left.
The following morning Suppiya had various kinds of fine food prepared. He then had the Buddha informed that the meal was ready.
The Buddha robed up, took his bowl and robe, and went to Suppiya’s house, where he sat down on the prepared seat together with the Sangha of monks. Suppiya approached the Buddha and bowed down to him. When the Buddha asked him where Suppiyā was, he replied that she was sick.
“Well then, please tell her to come.”
“She’s not able, Sir.”
“Well then, carry her in here.” And they did. The moment Suppiyā saw the Buddha that great wound healed and was perfectly covered with skin and hairs. Suppiya and Suppiyā exclaimed, “The great power and might of the Buddha is truly astonishing and amazing!” Delighted and joyful, they personally served various kinds of fine food to the Sangha of monks headed by the Buddha. When the Buddha had finished his meal, they sat down to one side. The Buddha instructed, inspired, and gladdened them with a teaching, after which he got up from his seat and left.
Soon afterwards the Buddha had the Sangha gathered and questioned the monks: “Who asked Suppiyā for meat?” The responsible monk told the Buddha.
“Did you get the meat?”
“I did, Sir.”
“Did you eat it?”
“Yes.”
“Were you circumspect about it?”
“No, Sir.”
The Buddha rebuked him … “Foolish man, how can you eat meat without circumspection? You have eaten human flesh. This will affect people’s confidence …” After rebuking him, he gave a teaching and addressed the monks:
“There are people who have faith and confidence, even to the point of giving up their own flesh. You should not eat human flesh. If you do, you commit a serious offense.
You should not eat flesh without being circumspect. If you do, you commit an offense of wrong conduct.”