Combine the sauce ingredients in a small bowl, set aside
In a large frying pan add the mushrooms, tofu, rice cakes, kimchi and veggie hotdogs/spam (if using) into separate corners of the pan
Pour in your sauce into the middle of the pan
Pour in the vegetable stock from the edge
Cover the pan and heat on a medium heat until the pan is boiling. Once boiling cook for a further 2-5 minutes, or until the rice cakes are beginning to soften and the mushrooms are almost cooked
Add in the noodles into the middle of the pan and top with the cheese. Sprinkle over the spring onion
Continue to boil until the noodles are just cooked, 2-5 minutes