In Adelaide, where the late chef Jock Zonfrillo forged his award-winning restaurant Orana using hundreds of edible Australian native foods, Adelaide Convention Centre is taking a similar approach, but doing it on a much larger scale, serving up to 3,000 diners at a time. Gavin Robertson – like Zonfrillo, also a Scot – is executive chef of the largest kitchen in the city at the convention centre. When offered some of the thousands of edible native ingredients by a First Nations enterprise, his first question was about their supply chain.