Īfter graduating from high school, Grasby studied law and journalism at the Queensland University of Technology, completing a Bachelor of Arts and Bachelor of Laws in 2005. Grasby was influenced by her mother Noi, a professionally trained Thai chef and credits her with inspiring her with a natural love of food. Her heritage is Thai on her mother's side and Australian on her father's side. She later moved to Brisbane where she boarded at Somerville House. At the age of four she moved with her family to Papua New Guinea, where she attended primary school. Grasby was born in Darwin, Northern Territory.

She is also a television presenter, cookbook author and food journalist. Marion Grasby (born 29 September 1982) is a Thai-Australian cook and food entrepreneur. Marion's Thailand (Lifestyle Food Channel, Foxtel, 2013) The Celebrity Apprentice Australia, Season 2 (Nine Network, 2012) MasterChef Australia All-Stars (Network 10, 2012) MasterChef Australia, Season 2 (Network 10, 2010) Television cook and presenter, cookbook author, food journalist

Marion pad thai