Plot offered through landshare

We've been lucky enough to have been offered some space to grow a few miles from home though the landshare website. The lady has kindly offered us a purpose built Victorian raised bed system along with a vintage glasshouse, shed and water facilities. All she asks in return is we keep it neat and tidy, mow the pathways and trim the hedge once or twice a year. I'm looking for suggestions as to what to grow there that'll be low maintenance as we can probably only manage to get there twice a week at most. There are 4 beds to use. I was thinkiing raspberries as, once established, don't need daily care but what else?

I do Runner, french beans, tom's and courgettes at home as they need daily care come summer so won't consider those for this space.

Any suggestions gratefully received!!

How marvellous!

How about sweetcorn, squashes, and if you can get hold of them now leeks and parsnips.

All good at looking after themselves and not on your "grown at home" list. 

Thanks for the suggestions so far, anyone else have any others?