Step 1

Set Instant Pot to Saute.

Step 2

Once the IP is hot melt the butter.

Step 3

Add the ground beef, let it cook without moving for about 1 minutes, to get a nice sear on it. After that, break it up using a wooden spoon as it cooks.

Step 4

Once the ground beef has browned, add salt, pepper and Worcestershire sauce. Stir to combine. Add onion, garlic, green pepper and mushrooms. Stir and cook for another 1-2 minutes.

Step 5

Add the ketchup and beef broth. Stir to combine. Scrape the bottom of the pot with a wooded spoon, to make sure bits are not stuck to it.

Step 6

Add pasta and stir to combine.

Step 7

Cover and seal the lid. Make sure the valve points to Sealed. Change setting to manual and adjust time to 5 minutes on High Pressure.

Step 8

Once Instant Pot beeps to show that it's done, do a quick release, by changing the position of the valve to Vent. Carefully remove cover and stir.

Step 9

Turn off the Instant Pot.

Step 10

Top with cheese, put the lid back on but don't seal. Allow a minute or two for cheese to start to melt. Stir to combine.

Step 11

Serve!