https://fitfoodiefinds.com/kitchen-hack-protein-instant-pot-mac-and-cheese/
Place macaroni noodles, broth, butter, garlic powder, dijon mustard and salt into the Instant Pot and mix well.
Set your Instant Pot by making sure the pressure valve is turned to seal. Close the lid and cook on high pressure for 5 minutes.
When the time on the instant pot runs out, quick release the pressure by turning the pressure valve to vent. Be careful, the steam is hot!
Remove the Instant Pot lid and give the noodles a quick stir. Add the cheddar cheese, cottage cheese, Greek yogurt. Stir constantly until all the cheese has melted. It might take some time for the cottage cheese to melt.
Remove the mac and cheese from the Instant Pot and top with freshly ground black pepper.