"Michelle trying put the homeless guy "Ted Williams" out of work" Boxed macaroni and cheese is off the menu at the White House. Michelle Obama said she banned it from her family's diet after being alerted to its processed ingredients. In an interview for the March issue of Cooking Light magazine, the mother-of-two recalled how her daughters used to love the cheap and easy-to-make meal. However, Sam Kass, the family's former personal chef, vehemently opposed the boxed variety and decided to give a quick tutorial to highlight the 'unhealthiness' of the product. Mrs Obama said that Kass gave her daughter Malia, who was about eight years old at the time, a block of cheese and challenged her to turn it into the same powdery consistency as the ingredient in the mac and cheese box. The youngster apparently spent 30 minutes trying to 'pulverize' the block of cheese into dust with no joy. Mrs Obama said from that point she and her family stopped eating macaroni and cheese out of a box 'because cheese dust is not food, as was the moral of the story.' The Obama's diet is now apparently completely rid of processed foods. However, in the past when Mrs Obama was working, shopping and cooking, she admitted it was tough being so health conscious. 'Sometimes I would use processed food a little bit more. I relied on takeout probably more than I should’ve,' the 51-year-old recalled. But now, as she marks the fifth anniversary of her anti-childhood-obesity initiative Let's Move!, the first lady wants to arm families with the knowledge she didn't have in the past. 'It’s doable - people just need the training and the education. 'What we do know is that the food you cook is healthier, and it can be more affordable, but it takes some skills,' she said. A couple of the first lady's tips include, banishing canned juices, learning how to cut up a whole chicken and making pasta dishes from scratch.