i collect field mushrooms, blewitts and parasols, those ive learned to identify, but the best free food is down on the shoreline, ivegot a converted prawn pot (similar to a crab pot) and i collect shore, green and velvet crabs in it to make a seafood bisque, mussels are an easy pick, 20mins work to feed us both, cockels and winkles, occasionally clams and native oysters from the mud of the fal. lovely.
i made £50 last year collecting and selling sweet chestnuts, ive still got a jar of pickled to add to stews, but my favourite, raw or cooked has to be wild garlic particularly the flowers.