Lemony Prawn Salad

After the Christmas excesses, I really should be detoxing and cleansing myself of the sins of the past year. I did a little assessment of the project to realise I'm over the halfway mark, and I've done 85 recipes out of 161 in 5 months, and 18 of the remaining ones are drinks! Anyway I was in need of something light and healthy and happened upon this salad. I had all the ingredients, so no trudging to the store in the snow (which has finally arrived). Fresh, quick and virtuous...