"I'm doing food that they know and recognise. Things like my Morning Wake Up Shake, sausage rolls, cauliflower fritters and poppy seed chicken which is like crispy chicken - and what kid doesn't like crispy chicken?"
At Pillans Point School, Van de Elzen showed kids the amount of sugar in fizzy drinks and gave them a healthy substitute - water, honey and raspberries.
And he was able to demonstrate the importance of healthy kai because he knows first hand the effects of bad nutrition.
As a top chef, Van de Elzen lived an unhealthy lifestyle.
He and his wife were unable to conceive children naturally, going through two rounds of IVF. After making radical changes to their lifestyle, their two beautiful daughters Hazel and Ivy were born.
"If we didn't change the way we lived, we wouldn't have those little sausages now," he said.
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