Liza is a Lecturer in the Department of Nutrition, Dietetics and Food, which is part of the Faculty of Medicine, Nursing and Health Sciences at Monash University. Liza teaches Public Health Nutrition and Food Sustainability Systems for nutrition and dietetics students. Together with her colleague Julia McCartan, Liza designed one of Australia's first undergraduate units on food sustainability systems for nutrition and dietetics students, which she continues to coordinate.

Liza is an Advanced Accredited Practising Dietitian (AdvAPD) with practical experience in community and clinical dietetics, food service and public health nutrition. These roles have enabled Liza to work in the Pilbara and Gascoyne regions of remote Western Australia, Alice Springs, the Kingdom of Tonga and Metropolitan Melbourne.  

Liza is an active member of Dieitians Australia's Food and Environment leadership committee and led the development of their first National position paper on Healthy and Sustainable Diets. Liza is an Australian Advisor on the International Confederation of Dietetic Association's (ICDA) sustainable food systems toolkit.

Liza's PhD explored the role of local government policy in promoting a population-wide shift to healthy and environmentally sustainable diets. Liza currently holds a Faculty Education Fellowship (2022-2024) where she is leading an interdisciplinary project to co-design planetary health curriculum with educators and students from various health professions degrees at Monash University.