Using sauté setting - add 2 tablespoons of oil and mushrooms to pot and season with ¼ teaspoon of salt. The salt will cause the mushrooms to sweat, which is what we want to happen. Cook for 5-6 minutes - until the mushrooms release their liquid and it all evaporates. Set mushrooms aside.
Continuing on sauté - add 2 tablespoons of oil, onions, celery, and ¼ teaspoon of salt to pot and cook for 3 minutes, stirring frequently. Once the onions softened and begin to release liquid, add coriander and continue cooking for another minute or so.
Add rice and cook for another 1 minute, stirring constantly to make sure each grain is coated and toasted evenly. Next, add wine and cook for another minute until wine is completely absorbed, stirring constantly.
Add stock and 1 teaspoon of salt, mix well, lock lid, and cook for 4 minutes at high pressure. Once cook time is complete, quick-release pressure. Remove lid and mix well.
Add Parmesan cheese and give a good mix. Finally, return mushrooms (and any liquid) to pot and mix well to combine. Serve immediately.