Spring onion, also known as green onion, is a versatile vegetable with long green stalks and small white bulbs. It has a mild, slightly sweet flavor compared to regular onions and can be used both raw and cooked. Rich in vitamins A, C, and K, along with antioxidants and fiber, spring onions help boost immunity, support digestion, and promote heart health. They add freshness and aroma to a variety of dishes like salads, stir-fries, soups, and garnishes, making them a staple in many cuisines.