וַיֹּ֨אכְל֜וּ מֵעֲב֥וּר הָאָ֛רֶץ מִמָּֽחֳרַ֥ת הַפֶּ֖סַח מַצּ֣וֹת וְקָל֑וּי בְּעֶ֖צֶם הַיּ֥וֹם הַזֶּֽה׃
And they did eat of the produce of the land on the morrow after the passover, unleavened cakes and parched corn, in the selfsame day.
Read midrashic interpretation of Joshua 5:11: and classical rabbinic exegesis.