No, yakisoba and chow mein noodles are not the same. Yakisoba noodles are made from wheat flour, salt, water and vegetable oil, while chow mein noodles are made from wheat flour, water and salt. The difference in ingredients gives each noodle a different flavor and texture. Yakisoba noodles are more chewy than chow mein noodles, and have a slightly sweet flavor. Chow mein noodles are crispier than yakisoba noodles, and have a more savory flavor.