If your mushrooms are not pre-sliced, slice them now. Finely dice the shallot and mince your garlic (or use pre-minced garlic).
Turn the Instant Pot to Saute and add a small amount of oil to the pot.
Once the oil has heated up, add in the shallot and garlic and cook until the shallots are translucent.
Add the sliced mushrooms and toss with the onions and garlic until just barely cooked. Press cancel on the sauté function.
Add all of the noodles to the pot along with the water. Pat the noodles down, but don't stir.
Pressure cook on HIGH for 2 minutes. It will take about 5-10 minutes for the Instant Pot to come to pressure.
Once the 2 minutes are up, press cancel and natural release (meaning don't do anything) for 5 minutes.
Then, release the remaining steam and pressure and remove the lid.
Once you have removed the lid, stir the noodles and then add the coconut cream.
In a small separate bowl, whisk together the cornstarch with an equal amount of water to create a slurry. Add this to the Instant Pot and stir.
Stir in all of the salt, garlic powder, and pepper.
Taste and adjust seasonings if needed, then serve and enjoy!