In a large pot bring the stock to a boil and add the ginger and garlic.
Step 2
Add the squash, corn, onion, carrots, cabbage and mushrooms and return to a boil. Cook at a low boil until the cabbage and onions are 3/4 cooked, 5 to 7 minutes.
Step 3
Add the spinach, tofu and scallions and return the soup to a boil. Cook until the tofu is heated through and the spinach is wilted, 2 to 3 minutes.
Step 4
Using a slotted spoon, transfer all the vegetables to a large, warmed serving bowl, cover the bowl and keep it in a warm place.
Step 5
Add the miso, tamari, hot pepper sauce, lemon juice and sesame oil to the broth. Season to taste with salt and pepper.
Step 6
Pour the broth over the vegetables and serve at once.