Place a wok or large frying pan over high heat. Add sesame oil and heat.
Add the ginger, garlic, celery, onion, chili, and carrot to the hot pan.
Fry for 1 minute then add mushrooms, fish sauce, and cayenne pepper.
Stir and fry for 2 minutes.
Add your chosen broth or water and heat until boiling.
Add the cooked noodles, stir to heat and combine (1 minute).
Grate the zest of one lime over the pan.
Remove from the heat and transfer into two bowls.
Peel the egg and cut it into 2 halves, placing one on each of the bowls.
Add a quarter of the lime to the top of the bowl and finish with a squeeze of sriracha sauce for extra spice and flavor.
Notes
You can use a wide variety of vegetables for this recipes, radish, spring onion, and zucchini all work well, so be imaginative and enjoy this healthy dish.