Prepare the Peppers:
Wash the bell peppers, cut off the tops, and remove the seeds and membranes.
Optional: You may choose to blanch the peppers by boiling them for 3-4 minutes and then quickly cooling them in ice water. I don’t blanch my peppers since the Instant Pot softens them, saving time and effort.
Prepare the Filling:
Over medium heat, cook the ground meat (or your chosen filling) in a skillet until brown.
Add the onion and cook until translucent.
Add the garlic and cook just until you can smell it. Don’t overcook the garlic, as it will become bitter.
Stir in the cooked rice or quinoa, diced tomatoes, salt, pepper, and Italian seasoning.
Cook for an additional 5 minutes. Let the mixture cool slightly, then stir in half of the cheese. Stuff the Peppers:
Spoon the filling into each pepper, pressing down lightly to pack it in.
Spoon a layer of tomato sauce over the filled peppers.
Top with the remaining cheese.
Cook in the Instant Pot:
Pour 1 cup of water into the bottom of the Instant Pot and insert the trivet.
Place the stuffed peppers on the trivet.
Lock the lid in place and set the valve to ‘Sealing.’
Cook on high pressure for 8-10 minutes (8 for firmer peppers, 10 for softer).
When cooking time is complete, let the pressure release naturally for 10 minutes, then perform a quick release for any remaining pressure.
Open the lid away from your face to prevent steam burns.
Serve:
Allowing the peppers to cool for a few minutes in the pot after the lid is removed can help firm them up slightly, making them easier to handle.
Carefully remove the peppers from the Instant Pot.
If the peppers are too soft or beginning to fall apart, support the bottom with a spatula or an additional spoon. I used two long-handled spoons to remove the peppers before I bought a special trivet. Garnish with fresh herbs if desired and serve hot.