The seventh season of the American competitive reality television series MasterChef Junior premiered on Fox on March 12, 2019 and concluded on June 4, 2019. The season is hosted by regular judges Gordon Ramsay and Christina Tosi, while Aarón Sanchez joins the judges this season.

Aarón Sánchez is a Mexican-American celebrity chef, restaurateur, television personality, cookbook author and philanthropist. He is the executive chef and part-owner of the Mexican restaurant Johnny Sánchez in New Orleans.