[7] In October 2019, it was announced that Leong would be joining Network 10's cooking competition show MasterChef Australia, as a new judge alongside Jock Zonfrillo and Andy Allen, after former judges Matt Preston, Gary Mehigan and George Calombaris left the series when Ten refused to meet the trio's pay rise demands.
[8][9] Leong, Zonfrillo and Allen debuted on episode one of the show's twelfth season, which premiered on 13 April 2020.
[13][14] In late 2022, Leong was announced as a judge on the all new MasterChef spinoff series, titled Dessert Masters.
[15][16] Network 10 announced in their 2023 upfronts that the series was to be aired in the second half of 2023, after the fifteenth season of MasterChef Australia finishes.
[18] Leong has had depression and anxiety throughout her life and has an autoimmune condition which has caused chronic insomnia and loss of hair.