In place of my spuds, I have put in leek plants and broccoli. Some onions have come out so I replaced them with the last sowing of French beans and beetroot. The other onions will be replaced by caulis and winter cabbage.
I agree, I hope to have crops all through the winter this year! Brussel sprouts, kale, swiss chard, leeks, romanesco, lamb's lettuce, winter lettuce under plastic - all these will see you through the winter with a minimum of fuss (feed a little and hoe, shouldn't really need to water once the autumn rains come).