This research explores the use of phase change materials (PCMs) in an indirect solar dryer to enhance the drying process of Moringa Oleifera and Solanum lycopersicum. The dryer uses solar energy to generate heat, with PCMs storing excess energy during sunny hours and releasing it during off-sunshine periods. This integration ensures extended drying time and consistent heat supply. With PCM, Moringa Oleifera’s moisture content drops from 0.85 to 0.1 in six hours, while Solanum lycopersicum reduces from 1 to below 0.2 in twelve hours. Without PCM, drying takes 22–23 h, and Moringa Oleifera often remains incompletely dried. The moisture content curve shows rapid initial moisture loss followed by steady removal, while the drying rate highlights quick surface evaporation. This study demonstrates that PCM-integrated dryers improve efficiency, reduce drying time, and offer a sustainable solution for drying nutrient-rich vegetables, making it ideal for agricultural applications.