Directions
In a medium bowl, whisk together the eggs, diced green chilies, half-and-half, ½ cup of the shredded cheese, salt, and cumin until well combined.
Lightly grease a 6-inch round baking dish or silicone pan and pour in the egg mixture.
Cover the dish tightly with aluminum foil.
Pour the water into the inner pot of your Instant Pot and place the trivet inside. Carefully lower the foil-covered baking dish onto the trivet. Secure the lid, set the steam release valve to 'Sealing', and select 'Pressure Cook' or 'Manual' on high pressure for 20 minutes.
Once the cooking cycle is complete, allow the pressure to release naturally for 10 minutes, then perform a quick release for any remaining steam.
While the pressure releases, preheat your oven's broiler.
Using oven mitts, carefully lift the baking dish out of the Instant Pot and remove the foil.
Sprinkle the remaining ½ cup of cheese evenly over the top.
Place the dish under the preheated broiler for 3-5 minutes, or until the cheese is melted, bubbly, and beautifully golden-brown.
Let the frittata rest for a few minutes before carefully inverting it onto a cutting board.
Slice into wedges, garnish with fresh cilantro, and serve warm.