Joshua 5:11

After the Passover they ate the old corn of the land, unleavened cakes, and parched corn.

Leviticus 23:14

Do not eat bread, roasted grain, or fresh grain until this same day. Then bring the offering to your God. It is a long lasting law for generations to come wherever you live.

Exodus 12:18-20

In the first month, on the fourteenth day of the month at evening, you shall eat unleavened bread, until the twenty-first day of the month at evening.

Exodus 13:6-7

You must eat unleavened bread seven days. The seventh day will be a feast to Jehovah.

Leviticus 23:6

The fifteenth day of the same month the Festival of Unleavened Bread begins. You must not eat any bread made with yeast for seven days.

Treasury of Scripture Knowledge

Summary

And they did eat of the old corn of the land on the morrow after the passover, unleavened cakes, and parched corn in the selfsame day.

General references

Bible References

Unleavened cakes

Exodus 12:18
In the first month, on the fourteenth day of the month at evening, you shall eat unleavened bread, until the twenty-first day of the month at evening.
Exodus 13:6
You must eat unleavened bread seven days. The seventh day will be a feast to Jehovah.
Leviticus 23:6
The fifteenth day of the same month the Festival of Unleavened Bread begins. You must not eat any bread made with yeast for seven days.

General references

Leviticus 26:10
Your harvests will be so plentiful that they will last for a year. Even after that you will have to throw away what is left of the old harvest to make room for the new!