Sendai is the origin of several foods, including "gyūtan" (beef tongue, usually grilled), hiyashi chūka (cold Chinese noodles), and robatayaki (Japanese-style barbecue). However, robatayaki was later introduced to Kushiro, which developed and popularized the dish. As a result, many people believe Kushiro is the origin of Robatayaki. Zundamochi (ずんだ餅, mochi balls with sweet, bright green edamame paste), and sasakamaboko (笹かまぼこ, kamaboko shaped like bamboo leaves) are also considered to be Sendai specialties. Sendai is also known for good sashimi, sushi, and sake. This is because Sendai is near several major fishing ports, such as Kesennuma, Ishinomaki, and Shiogama, and the fact that Miyagi Prefecture is a major producer of rice. There are many ramen restaurants in Sendai, and the area is known for a particular spicy miso ramen. Also, Sendai station offers the most types of ekiben of any station in Japan. In autumn, many people organise Imonikai, a sort of picnic by the river which involves making a potato stew called "Imoni".