The children helped squeeze lemons and chop spring onions, and even brought ingredients - such as freshly picked kale - from their school vegetable garden.
It's a big difference for some of the children, who last year were trying vegetables such as tomatoes and celery for the first time.
The cooking school is starting in the 30-plus Auckland schools who get lunches from the Eat My Lunch programme, and Meredith said it was an extension of what he and founder Lisa King were trying to achieve.
"As well as the lunches we wanted to do the cooking schools because it relates to what we're doing with kids being educated in how to cook.
"With us having a proper kitchen, we have the opportunity to showcase that and for the kids to be involved in making real simple recipes they can do at home."
They get the opportunity to visit Eat My Lunch's kitchen in central Auckland and cook with professional chefs such as Meredith.
"It's exciting, and it's good for the kids to get involved in cooking quite early," he said.
"And you never know - we might get some really good chefs out of it, or some passionate cooks."
What is Eat My Lunch?
• The company was founded by Auckland marketers Lisa King and Iaan Buchanan last year to help tackle poverty in New Zealand by giving a hungry child a healthy lunch. The concept works on a buy-one-give-one system - so for every lunch bought, the company gives a wholesome, freshly made lunch to a child in need.
• Chef Michael Meredith - who also runs Dine by Donation nights - quickly came on board.
• The start-up this year celebrated delivering 100,000 lunches to children in 30 schools across Auckland, and has expanded to Hamilton and Wellington.