This chapter delves into the techniques and technologies of domesticated mushroom cultivation, emphasizing its significance in sustainable agriculture, nutrition, and environmental conservation. Mushrooms are recognized for their ability to transform agricultural waste into protein-rich food, addressing malnutrition and reducing nutrient wastage. The chapter highlights the global importance of mushrooms, their nutritional and medicinal benefits, and their role in sustainable forestry and agriculture. It explores advancements in controlled environment agriculture (CEA), substrate preparation, spawn innovations, and postharvest technologies that optimize yields and quality. The cultivation of popular species such as button, oyster, and shiitake mushrooms is discussed, alongside the utilization of agricultural waste for substrate preparation. Furthermore, emerging preservation techniques like freeze-drying, high-pressure processing, and innovative packaging methods are examined to enhance shelf life and maintain nutritional value. This comprehensive overview underscores the potential of mushroom cultivation as a biotechnological solution to global food challenges and environmental sustainability.