After moving the bean tepee from the asparagus bed and weeding the chard & chicory, I continued on with the florence fennel & clearing triffid-like nasturtiums.
Curious to see what had happened to the crosnes I planted a couple of years ago, I poked about under the uninspiring now-dead foliage and found a great network of white fibrous roots decorated with pearly shell-like little tubers. Look like they could be a bit of an invasive problem but probably worth keeping. They will take some cleaning but I recall them being delicious when first encountered at The Pig restaurant in the New Forest, so will try them sautéed in butter.
Following the tuberous theme, I then went to investigate the Oca and found these little orangey red poppets just below the oxalis look-alike foliage. Not sure they are worth the space they take up, but for now will focus on a tuberous supper of mixed sauteed pearls.