The seventh series of the Australian cooking game show MasterChef Australia premiered on 5 May 2015 on Network Ten.
This series was won by Billie McKay in the grand finale against Georgia Barnes on 27 July 2015. The announcement of the winner was watched by 2.2 million metro viewers, making it one of the most watched shows of 2015.
Shannon Bennett took on the role of guest mentor, guiding contestants participating in Immunity Challenges, the role Kylie Kwong held in series 6. Unlike the sixth series, the advantage for the Immunity Challenge was now handed to the contestant's choice instead of the chef. The use of the power apron was now reduced to one day in a week only and it passed down to the next contestant who excelled in the subsequent challenge.
The Top 24 were revealed on 5–6 May 2015. Prior to the first competition round, Mario Montecuollo was disqualified after his five-month professional kitchen experience violated the show's guidelines of the auditions. The producers investigated the contestant's position as a head chef at his bar in Enmore and discovered that Montecuollo had been working one day a week as a paid cook for five months within the past years. Casual participants were allowed to audition without working previously in a professional kitchen for more than six weeks, ruling him ineligible to compete in the show. He was replaced by Jessie Spiby, who had originally missed out on the Top 24 in the second episode.
Future appearances
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