Add the minced garlic and cook for 1 minute until fragrant. Press Cancel.
Add the cubed chicken, Italian seasoning, salt, and pepper to the pot. Stir briefly.
Pour in the chicken broth and then add the uncooked orzo pasta. Do not stir after adding the orzo to prevent sticking.
Secure the lid and set the vent to Sealing. Select Manual or Pressure Cook on High for 4 minutes.
When the cooking time is complete, allow a Natural Pressure Release (NPR) for 5 minutes, then carefully perform a Quick Release (QR) for any remaining pressure.
Open the lid. Stir the mixture well. The liquid will look thin.