When you make tempura udon, it is important to serve the two elements separately; I've had it at restaurants where the tempura is floating in the bowl of hot broth and noodles, which makes it soggy.
Along with a wide selection of udon, rice dishes ... Wang offered us his advice on the vegetables that are optimal for making tempura, noting ones that work well from both a flavor and texture ...
Udon is traditionally served as a hot noodle soup topped with scallions, tempura or fried tofu ... and then quickly fry them in vegetable oil so that they're light and crunchy.