1. Set the Instant Pot to sauté. Once its heated up add in the onions, peppers and mushrooms and let them cook down for a few minutes. Splash in veggie broth as needed to prevent sticking.
2. Add in the rest of the ingredients and stir. Put on the lid and set the valve to "sealing". Press "cancel" to turn off sauté mode and then press "manual" or "pressure cook" and set the time to 10 minutes. If you are using brown lentils you may have to add more time- about 5 extra minutes depending on the size. Do a full natural release at the end- about another 17- 20 minutes. Serve on whole wheat buns or in whole grain wraps.
Notes
Note- this recipe was tested with whole green lentils from Trader Joes. if you are using brown lentils you may have to adjust the cook time and add about 5 extra minutes.