at the moment I'm putting in turnips, beetroots, chard, and yet more peas.
turnips are going in as the spuds come up. Beetroots are replacing the ones that i sewed too early, have done them at this time of year before and it worked well. Ditto the chard. For the peas I'm fighting the losing battle of trying to dig more beds from the couch grass waste land behind the muck heap so that I can use them all up after over buying.
And raddishes - if there is an inch of spare space i always pop a radish in.
and something else in pots. dunno what it is - planted it last week and have forgotten what it was, but what ever it is it's coming up well.