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.
Changes 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.
Contestants
Top 24 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.
Contestant Age State Occupation Status Billie McKay 24 NSW Restaurant ManagerWinner 27 July Georgia Barnes 27 QLD Health Product RepRunner-up 27 July Jessica Arnott 29 WA Food Sales AssistantEliminated 26 July Reynold Poernomo 21 NSW StudentEliminated 23 July Sara Oteri 26 WA Advertising CreativeEliminated 20 July Matthew Hopcraft 43 VIC DentistEliminated 16 July Jessie Spiby 28 SA Graphic DesignerEliminated 9 JulyReturned 25 JuneEliminated 25 June Ashleigh Bareham 23 QLD Childcare WorkerEliminated 6 July Amy Luttrell 29 TAS HairdresserEliminated 2 July Rose Adam 38 SA Workplace TrainerEliminated 29 June Stephen Rooney 31 NSW Recruitment SpecialistEliminated 22 June John Carasig 36 VIC Flight AttendantEliminated 18 June Jamie Ward 30 VIC Construction Project ManagerEliminated 15 June Jacqui Ackland 40 VIC Medical ScientistEliminated 11 June Anna Webster 28 VIC StudentEliminated 8 June Ava Stangherlin 23 NSW Visual MerchandiserEliminated 4 June Kristina Short 28 TAS Customer Service ManagerEliminated 1 June Melita Tough 41 VIC Stay-at-home MumEliminated 28 May Fiona Grindlay 31 QLD Marketing ManagerEliminated 25 May Jarrod Trigg 29 VIC Civil EngineerEliminated 21 May Andrea Farinha 18 NSW StudentEliminated 18 May Kha Nguyen 25 VIC Retail Sales AssistantEliminated 14 May James Bell 23 QLD Financial AnalystEliminated 11 May Marcus Cher 31 VIC Freelance Industrial DesignerEliminated 8 May Mario Montecuollo 38 NSW Bar OwnerDisqualified 7 May
Future appearances
In Series 8 Billie McKay appeared as a guest judge for both a Mystery Box and an Invention Test challenge, while Reynold Poernomo appeared as a guest judge for a Pressure Test. In Series 9 Reynold appeared as a guest chef for an Immunity Challenge, where he won against contestant Callan Smith. In Series 10 Billie appeared at the auditions to support the top 50 while Reynold appeared as a guest chef for an Immunity Challenge, although contestant Khanh Ong opted to cook against Series 8 runner-up Matt Sinclair instead. Reynold later appeared at the Semi Finals dinner service as a guest along with Georgia Barnes, Jessica Arnott, Sara Oteri, Matthew Hopcraft, Jessie Spiby, Ashleigh Bareham, Rose Adam, Jamie Ward, Ava Stangherlin & Kha Nguyen. Reynold appeared on MasterChef Indonesia (season 5) as a guest judge as well as the brother of judge Arnold Poernomo. In Series 11 Billie was brought onboard one of three mentors for the Immunity Challenges. Reynold & Rose appeared on Series 12. Rose was eliminated on May 5, 2020, finishing 19th and Reynold was eliminated on July 19, 2020, finishing 3rd. Reynold appeared on Series 13 as a guest judge for an elimination challenge. John Carasig appeared on Series 14 along with Billie, who competed for a chance to win the title for the 2nd time. John was eliminated on May 8, 2022, finishing 21st. Billie won the competition on 12 July 2022, making her the first contestant ever to win the show twice. In Series 14, Reynold appeared as a guest judge for a Pressure Test. Reynold competed on the Dessert Masters spin off series. He was runner up on 28 November 2023. Matthew appeared on Series 17 and was eliminated on May 18, 2025, finishing 20th.
Guest chefs Week Guest Judge Challenge 1 Brent Owens Top 24 Mystery Box Challenge Massimo Bottura Team Challenge 2 Sat Bains Pressure Test Ben Williamson Immunity Challenge 3(Marco Week) Marco Pierre White All Challenges & MasterClass Josh Pelham Immunity Challenge Curtis Stone MasterClass 4 Maggie Beer Mystery Box Challenge & Invention Test Anna Polyviou Pressure Test Duncan Welgemoed Immunity Challenge Benjamin Cooper Elimination Challenge 5(Superstars Week) Poh Ling Yeow Mystery Box Challenge Hayden Quinn Invention Test Kylie Millar Pressure Test Callum Hann Immunity Challenge Andy Allen Team Challenge Ben Milbourne Justine Schofield Elimination Challenge Poh Ling Yeow MasterClass Callum Hann 6 Curtis Stone Invention Test Marcus Wareing Pressure Test Nick Holloway Immunity Challenge 8 Heston Blumenthal Mystery Box Challenge & Invention Test Guillaume Brahimi Pressure Test Jim McDougall Immunity Challenge Bernard Chu Team Challenge Darren Purchese Christy Tania Kirsten Tibballs 9 Janice Wong Pressure Test Ross Lusted Immunity Challenge Andy Groneman Team Challenge Rick Stein Elimination Challenge 10 Darren Purchese Pressure Test Monty Koludrovic Immunity Challenge Jaclyn Koludrovic 11("Marco Returns" Week) Marco Pierre White All Challenges & MasterClass 12 Grant King Pressure Test Brett Graham Pressure Test Finals Heston Blumenthal Grand Finale
Elimination chart No. Week1234567891011Finals MysteryBoxChallengeWinner JessicaJohnSara Georgia Ashleigh Melita John John Jessie(Power Apron) Sara Rose Billie None Sara Georgia InventionTestWinner None AshleighJessicaReynold BillieGeorgiaMatthew BillieJessieJohn AnnaAvaGeorgia JacquiJessicaMatthew ReynoldBillieJessieSara AshleighMatthewRose JessicaJessieSara GeorgiaJessieReynoldSara GeorgiaJessicaSara Billie Georgia Georgia ImmunityChallenge Lose: Ashleigh Lose: Georgia Lose: John Lose: Anna Lose: Jessica Win: Billie Lose: Jessie Win: Ashleigh Lose: Jessie Lose: Jessie, Reynold Lose: Georgia None None1 BillieTop 24 IN IN IN P.A. IN IN 2 GeorgiaTop 24 IN IN IN IN colspan=2 IN 3 JessicaTop 24 IN IN IN IN colspan=2 IN 3rd 4 ReynoldTop 24 IN IN IN IN IN P.A. colspan=2 IN colspan="2" 5 SaraTop 24 IN IN IN IN IN colspan=2 IN 6 MatthewTop 24 IN IN IN IN colspan=2 colspan=2 7 JessieReturn IN IN IN IN IN P.A. colspan=2 IN 8 AshleighTop 24 IN IN IN IN P.A. IN 9 AmyTop 24 IN IN IN IN IN IN colspan=2 IN colspan="20" 10 RoseTop 24 IN IN IN IN colspan=2 colspan="45" 11 StephenTop 24 IN IN IN IN IN IN colspan=2 Saved colspan="45" 12 JohnTop 24 IN IN IN IN colspan="45" 13 JamieTop 24 IN IN IN IN colspan="45" 14 JacquiTop 24 IN IN IN colspan="71" 15 AnnaTop 24 IN IN IN IN colspan="71" 16 AvaTop 24 IN IN IN IN colspan="71" 17 KristinaTop 24 IN IN IN IN colspan="71" 18 MelitaTop 24 IN IN IN colspan="71" 19 FionaTop 24 IN IN IN colspan="71" 20 JarrodTop 24 IN IN IN colspan="71" 21 AndreaTop 24 IN colspan="71" 22 KhaTop 24 IN colspan="71" 23 JamesTop 24 IN colspan="71" 24 MarcusTop 24 IN colspan="71" 25 Mario colspan="73" Eliminated Mario(Jessie) None Marcus James Kha Andrea Jarrod Fiona Melita Kristina Ava Anna Jacqui Jamie John Stephen Jessie Rose Amy Ashleigh Jessie None Matthew Sara Reynold JessicaGeorgia80 pointsBillie82 points (win)
Episodes and ratings Colour key: – Highest rating during the series – Lowest rating during the series