Set the Instant Pot to sauté. Add the onion and cook for about 2 minutes. Add the bell pepper and garlic, then turn off the Instant Pot. (Keep some water nearby to prevent sticking.)
Add the diced tomatoes, pinto beans, maple syrup (or brown sugar), oregano, bay leaf and water. Stir to combine.
Secure the lid, set the valve to sealing and cook on manual (high pressure) for 5 minutes.
Once done, carefully perform a manual release.
Open the lid and remove the bay leaf (it will likely be floating on top).
Add the prepared cashew cream (see note below) and stir well to combine.
Season with salt to taste and serve with baked corn tortillas, green onions or cilantro.