Add the trivet insert to the Instant Pot and pour the water into the Instant Pot.
In a large bowl, stir together the diced tomatoes, 1 cup shredded cheese, minced garlic, chili powder, cumin, garlic powder, onion powder, and paprika.
Stuff each of the peppers with ¼ of the rice mixture.
Place the peppers in the Instant Pot, making sure they stand upright so the filling doesn’t spill out.
Divide the remaining ½ cup of cheese over the top of the peppers.
Attach the lid and ensure the valve is in the sealing position.
Cook on Pressure Cook-High for 10 minutes.
Then allow the pressure to release naturally for 10 minutes.
Switch the valve to venting and allow any additional pressure to release.
Serve the peppers garnished with chopped cilantro or parsley.
Enjoy immediately or store in an airtight container in the fridge for up to three days.