A warming miso broth with tofu, noodles and crunchy veg.
Check your miso is gluten free (some contain barley) and swap the udon for rice noodles, cooked as per packet instructions. If you add soy sauce, use a gluten-free one.
You can add a splash of soy sauce if you want a bit more depth, or a bit more miso paste for a stronger broth. The tofu can be swapped for cooked chicken breast if you prefer.