Hit the sauté button.
Add the meat and onion to the Instant Pot and cook until the meat is browned and the onion is soft.
Remove the pot and drain as much grease as possible from the meat and onion. Return the pot to the Instant Pot.
Add remaining ingredients to the pot.
Set the manual cook time to 20 minutes on high pressure.
Let the pressure release naturally for 5 minutes, then release remaining pressure.