Place the oil in the Instant Pot and select “Sauté”.
Add the meat and cook for about 5 minutes.
With a slotted spoon, transfer the meat into a plate.
Select “Cancel” and stir in onion, paprika, red pepper flakes.
Top with meat, followed by tomato and sprinkle with salt.
Secure the lid and cook under “Manual” and “High Pressure” for about 15 minutes.
Select “Cancel” and carefully do a Natural release.
Remove the lid and with tongs, transfer the lamb meat into a plate.
Select “Sauté” and cook for about 10 minutes.
In a bowl, add the sour cream and ¼ cup of hot liquid from Instant Pot and beat until smooth.
Add the sour cream mixture into Instant Pot and stir to combine.
Stir in cooked lamb meat and cook for about 3-4 minutes.
Select “Cancel” and serve hot.