The proportion of people who will change habits based upon convenience is high.
In addition, food production and distribution systems are immensely heterogeneous. They tend to be predictable in structure based upon land use patterns (urban planning). Apartment dwellers spend less on transport and more on packaging, but don't grow much food or raise animals. With small family units, cook-for-one kitchens and duplicate appliances, waste is highest. Suburbia dwellers spend more on transport but might grow food and raise animals or at least keep chickens. Waste is also high, often due to spoilage. Villages and rural dwelling people may very well produce all their own food and may walk everywhere, with no transport. Waste is lower, since crops may be picked or animals slaughtered only when required.
Since changing people's lifestyles to a sustainable reality requires drastic lifestyle changes and is therefore untenable, I believe the key to significantly reducing resource wastage in the food distribution globally is more efficient distribution and the deduplication of resources (kitchens, appliances, grocery stores, etc.). Obviously this can be sold based on convenience, but cuts across tightly held beliefs around individualism, identity and tradition (amongst others). For various reasons such as population density, social norms, mobile payment penetration and legal and regulatory environments, I believe the future technologies in this space will be set in the world's highest density cities in Asia, and then re-exported to a lagging west.