Turn on your Instant Pot and press Sauté. Add the oil, onion and garlic and sauté, stirring occasionally for 3 to 5 minutes, until onion begins to turn translucent.
Scoot the onion and garlic off to one side and add the hunk of beef. Leave the beef in one chunk and sear for 2 to 3 minutes per side, until golden-brown.
Add the parsley, oregano, thyme, rosemary and salt. Use a spatula to chop up the meat and mix everything together.
Stir in the remaining ingredients to the Instant Pot and Secure the lid. Press Pressure Cook or Manual and set the time for 8 minutes. Leave the vent on Sealing. Allow the Instant Pot to run its cycle, then allow it to go into the Keep Warm mode for 5 minutes.
While the Instant Pot is working its magic, stir together the cheese topping mixture until well-combined. Manually release the pressure and stir well.
Scoop soup into bowls and add desired amount of cheese topping. You can either serve immediately, or place bowls on a large baking sheet and bake at 400 degrees F for 5 to 10 minutes, until cheese has melted.