On sauté mode, add in olive oil and onion with salt. Sauté for 2-3 minutes before adding in the dried basil, dried oregano, and garlic powder. Stir to combine.
Add in the chicken breasts and the chicken broth.
Close the IP lid, set it to sealing, and set the IP to pressure cook for 6 minutes.
When done, quick release, remove the chicken breasts to shred, and set to sauté mode for 6 minutes.
Add in the lemon juice and orzo. Stir every so often and at the 3 minute mark, add in the peas and spinach. Add the chicken back in once you’re done shredding.
Stir to combine everything and serve immediately. Top with parmesan if you desire.