Chop all vegetables and add to IP
Lightly saute vegetables in a small amount of water, veg broth, or bean juice (aquafaba) until softened
If using - add seitan, cauliflower crumbles, or mushrooms for a meat substitute. Note: All of these are optional and you could just add another can of beans.
Add water and all spices except Masa and stir well
Mix in beans and stir well
Add tomato sauce and diced tomatoes to TOP of stew and DO NOT STIR
Add lid to IP and set to MANUAL mode for 10 minutes. Allow to naturally vent when completed for 10 minutes before CAREFULLY releasing any additional pressure
Stir in tomato paste, any last minute garnishes, and Masa flour.
Let rest for 10 minutes to thicken, stirring occasionally
