Turn your Instant Pot to saute.
Add the butter, onion and ground beef.
Saute until the beef has browned and the onions are translucent.
Hit the cancel/keep warm button
Add broth, veggies and seasonings
Put on lid, make sure the steam valve is closed.
Press the soup button and change time to 9 minutes.
When done, either allow to naturally release or quick release after 5 minutes.