Add in the olive oil. Then add in the cube steaks and brown them on both sides but do not cook them all the way through. You will have to work in batches to brown all the steaks.
Then remove the steaks and add in the beef broth. Gently scrape the bottom of the pan to get up all the remaining brown bits.
Then turn the instant pot off. Add the cube steaks back to the instant pot and top with the onion soup mix and the cream of mushroom soups.
Add the lid and set the valve on top of the lid to the sealing position.
Cook on high pressure for 15 minutes. After the cook time, let the pressure release naturally for 5 minutes and then move the valve on the lid to the venting position to release the rest of the pressure from the instant pot.
Once all the pressure has been released from the instant pot.
Remove the cube steaks and place them on a separate plate.
Stir the gravy in the instant pot and switch to the instant pot back to the sauté setting. Mix together the cornstarch and water in a small bowl. Stir this mixture into the instant pot and cook for 2-3 minutes while whisking to thicken the sauce. Once the sauce is the thickness that you prefer, turn off the instant pot.
Meanwhile cook the egg noodles based on the package instructions.
Serve the steak with the gravy over the egg noodles and enjoy!