Place all ingredients for the chicken in the Instant Pot, turn valve to "sealing" and select the pressure cooker button. Set the timer for 15 minutes and allow the machine to pressurize.
While the chicken cooks, sauté the peppers and onions.
To make the spicy mayo, simply whisk together all ingredients listed and set aside.
Once the chicken is cooked, switch the valve to "vent" for at least 10 minutes before opening. Shred chicken and get ready to assemble the sandwiches.
Slather each side of the rolls with spicy mayo sauce. Next, pile each side with the pepper-onion mix, chicken and top with shredded cheese. Place sandwiches on a cooking sheet under your oven's broiler for 1 - 2 minutes, or until cheese has melted. Add avocado to one side of each sandwich half and then fold together to devour. Enjoy!
Recipe by Slice of Jess at https://sliceofjess.com/habanero-avocado-instant-pot-chicken-sandwich/