Preheat pressure cooker on sauté mode.
Pat chicken pieces dry. Drizzle both sides of chicken with oil and season with salt, pepper( garlic powder and onion powder are optional but I use those as well.)
Once pot is hot, add a little oil and add chicken and brown 4 minutes on one side. Turn and brown another 3-4 minutes. remove chicken and set aside Repeat with any remaining chicken.
In same pot, add one more tablespoon of oil and add in onions, pepper, carrots and mushrooms with a large pinch of salt. Stir occasionally cooking 5-8 minutes until veggies are soft
Season mixture with rosemary, oregano, pepper, and red pepper flakes. Cook for another 1-2 minutes while stirring occasionally.
Add in garlic and stir frequently for 1 minute.
Add wine to the pot and stir making sure to scrap up any brown bits stuck on the bottom. Let wine cook 2-3 minutes.
Add crushed tomatoes and olives and stir to combine. Taste sauce and adjust seasonings if needed.
Add chicken back to pot, seal and set pressure cooker to manual high pressure for 15 minutes.
Once pot is done, let it naturally release for 10 minutes. After that turn valve and release any remaining pressure.
Stir in fresh parsley just before serving!
Serve over pasta and enjoy!