Instant Pot beef stew casserole is incredible! With tender beef and rice cooked in one pot with vegetables too it is a pressure cooker recipe you will love.
Add first 10 ingredients into your pressure cooker and stir. Close lid and steam valve. Cook on high for 18 minutes with a 5 minute natural release. Release rest of pressure and then continue.
Lift lid and add carrots, celery, mushrooms and rest of your beef broth.
Sprinkle the uncooked white rice on top and gently submerge into your liquid, do not stir.
Close lid and steam valve and set to high pressure for 9 minutes followed by a 3 minute natural release. Release rest of steam after that and stir, serve!