Turn the instant pot to sauté mode and sauté the garlic, ginger and onions.
When soft and golden, add in chicken pieces seasoned in salt and pepper and sear.
Add carrots, mushrooms, curry block, and water into the Instant Pot and cook on high pressure for 15 minutes. If you don't have an Instant Pot, you can easily cook via stovetop as well per the instruction on the Japanese curry block label.
In the meantime, we can begin preparing the omelette. Break 2 eggs in a bowl and stir, mixing green onions and seasoning with salt and pepper.
In a skillet, spray cooking spray and pour in egg mixture. Cook and stir the egg mixture until it starts to set. Sprinkle on the cheese if you are using it, then fold the omelette over and transfer it to a plate.
Once the curry has finished cooking, open the Instant Pot. At this point, it will likely look like the curry is not mixed in -- don’t panic! Change the Instant Pot to sauté mode and add in the ketchup and soy sauce, then stir the mixture thoroughly until everything is smoothly mixed together.
Pour the curry over the omelette and enjoy your new favorite protein shake replacement!