The fact that Indonesia becomes the first country contributing to food loss and food waste among the G20 countries in 2021 is an opportunity to evaluate the effectiveness of sustainability education taught in universities. This study aims to map students' initial knowledge and skills in processing the food waste and to create an integrated food waste management design in a higher education institution. An explanatory sequential mixed method was used in this study involving 641 student respondents for the quantitative phase and three institutions for the qualitative phase. The quantitative phase found that 67.71% of students did not have experience processing organic waste, and their perception about waste segregation benefit is still in the moderate category. However, the index number of students' self-identity is high (80.94) regarding their perception that they had behaved in an environmentally friendly manner. This finding is then communicated with several related institutions during the qualitative phase to develop an integrated sustainability education model outside the formal curriculum to improve students' knowledge and skills in processing food waste. [For the full proceedings, see ED654100.]