A pea shaped hole

The glorious peas have been and gone. No new flowers were coming and the stalks were turning yellow. I certainly can't complain about the amount of food they produced though. I was eating peas for weeks, huge, sweet juicy things.

There is now a large pea shaped hole in the raised bed. Elsewhere I have beetroot, cabbage, cauliflower so I really don't know what to put in there next.

Any suggestions?