Noodle variety is a broad term that encompasses many different types of noodles from around the world. Udon, EGG, and soba are three popular varieties of noodles. Udon is a thick, white wheat flour noodle that is popular in Japanese cuisine. EGG noodles are thin, yellow noodles made from wheat flour and eggs, and are commonly used in Chinese and German dishes. Soba is a thin, buckwheat noodle that is popular in Japanese cuisine.