But he urged them strongly, so they turned his way and entered his house. He prepared a feast for them and baked unleavened bread, and they ate.
Genesis 19:3 (The Contemporary Torah, JPS, 2006)
It’s curious that the messengers of God ate the meal Abraham and Sarah prepared for lunch, but when they visited Lot, it is described differently.
According to the rabbis, the meaning of the text is that Lot prepared a great meal, just like Abraham did, but the messengers only snacked on the crackers. They abstained from the feast itself.