Rashi: Genesis 9:3 (Based on Sanhedrin 59b)
רשי לברשית ט:ג
לכם יהיה לאכלה: שלא הרשיתי לאדם הראשון לאכול בשר אלא ירק עשב, ולכם כירק עשב שהפקרתי לאדם הראשון, נתתי לכם את כל:
"Shall be yours to eat": For I did not permit the first man [Adam] to eat meat, but only vegetation, but for you [Noah], just as the green vegetation which I permitted for the first man, I have given you everything.

Suggested Discussion Questions:

Why was meat originally prohibited?

Why did this change after the flood?

Time Period: Medieval (Geonim through the 16th Century)