01 -
In a large bowl or directly in the slow cooker, whisk together miso paste, Worcestershire sauce and tomato paste into 1.2L warm vegetable broth until fully incorporated to prevent clumping.
02 -
Add all remaining ingredients except lasagna sheets and toppings to the slow cooker.
03 -
Set slow cooker to 4 hours on high or 8 hours on low. The longer cooking time produces a thicker, richer tasting sauce.
04 -
When 20-25 minutes of cooking time remains, break lasagna sheets into smaller pieces and stir into soup. Simmer until noodles are al dente, approximately 20-30 minutes.
05 -
If desired, sprinkle vegan mozzarella shreds on top during the final 10 minutes to allow it to melt.
06 -
Ladle into bowls while hot and garnish with tofu ricotta, vegan cheese shreds, nutritional yeast, red pepper flakes, and fresh basil as desired.