Onigiri is a traditional Japanese food made from rice, often shaped into a triangle or oval. It is typically filled with various ingredients, such as salmon, pickled plum, or seaweed, and is often wrapped in a sheet of nori for added flavor and convenience. Onigiri is popular for its portability, making it a common choice for picnics and lunchboxes. Onigiri can be enjoyed cold or at room temperature, and it is a versatile dish that can be customized with different fillings and seasonings. In Japan, it is often sold in convenience stores and is a staple in many households, reflecting the country's love for rice-based dishes.