This chapter highlights the transformative potential of nanotechnology in enhancing the quality and durability of legume micro greens, paving the way for higher nutritional value, longer freshness and consumer satisfaction in sustainable agriculture. Legume micro greens, known for their exceptional nutritional value, often face problems related to rapid spoilage and limited shelf life. Nanotechnology offers an innovative solution to increase the quality and extend the shelf life of this delicate vegetable harvested at a very young age (7–21 days after germination). Key areas of focus include the use of nanoparticles for improved nutrient delivery, combating microbial growth and extending shelf life through smart packaging materials. Nanoparticles serve as microscopic carriers of essential nutrients, facilitate controlled release and improve bioavailability in micro greens. In addition, nanoparticles with antimicrobial properties are incorporated into the coatings to create protective shields against spoilage microorganisms, ensuring long-term freshness. Intelligent packaging materials made of nano composites regulate gas exchange and humidity levels and create optimal conditions for legume storage. These advances in nanotechnology enable growers and producers to maintain the quality and nutritional integrity of microgeens, thereby meeting consumer demands for fresh and nutritious produce. Furthermore, the chapter discusses emerging technologies, such as genetic modification, transcriptomic analysis and metabolomic studies, which offer additional possibilities for increasing the quality and nutritional content of micro greenlegumes. By using nanotechnology, producers can contribute to a more sustainable food system by minimising food waste and providing consumers with high-quality, nutrient-dense micro-greens.