Turn Instant Pot to Sauté. Add ground beef and break it up into chunks (no need to brown completely).
Add pasta on top of the beef, then pour in pasta sauce. Do not stir.
Fill empty pasta sauce jar with water or broth and pour down the sides of the pot.
Sprinkle in balsamic vinegar, garlic salt, and Italian seasoning.
Secure lid and set to High Pressure for 5 minutes.
Quick release pressure when done.
Stir well, breaking up any remaining meat and mixing sauce evenly.
Adjust seasoning, sprinkle with parmesan, and serve warm.