Abraham feeds the Lord a prepared calf
As the Lord appears to Abraham at the oaks of Mamre, Abraham insists that if he has found favor in His sight that the three men rest and allow a little water be brought and their feet be washed as they rest under the tree. He brings them curds, milk, a prepared calf, and cakes from 3 seahs of fine flour. The Lord prophesies Isaac's birth there before continuing on His way to investigate Sodom and Gomorrah's grave sin. (Genesis 18)