Another way of looking at it is to include wild indiginious plants that are for various reasons hard to forage. Burdock is a good one, wild grown it has a habit of growing in rocky soil, so the effort and permission to deep 2-3 foot downward is really hard. On a well fed turned over soil free of rock you have your self an intresting veg differant from others. Nettles and jack by the hedge you knwo are unsprayed are nice. Nettles are good in soups and as a ladybird over wintering habitat, and jack by the hedge have nice wasabi like roots.
My veg garden is a barely managed weed patch, but i eat alot of those weeds. Stuff like bitter cress are good eating and dont have any effort put into them. Weeding becomes easier when you look at dandilions and think coffee and wine not two hours of weeding.