Step 1.
Instant Pot - select the Saute setting. Heat the oil in the pot, add the rice, and cook, occasionally stirring until browned. Be careful not to burn it.
Step 3.
Add the chopped tomato and cook more. Stir in carrots, celery, potatoes, and tomato sauce. Press the Cancel button, then add chicken, water, and salt.
Step 4.
Lock the lid and close the pressure release valve. Pressure cook on High pressure, setting the timer for 15 minutes.
When done, use the quick release method to release the pressure.
Step 5.
Turn the valve to allow the steam to escape/pressure to release.
For safety reasons, the pressure cooker will not open until the pressure is released and the float valve has dropped.