Rub the chicken with all the seasonings on all sides.
Press the SAUTE button. Add the oil and sear the chicken, in batches, for 3-4 minutes on each side, or until nicely browned but not fully cooked through.
Add in the onions, celery, peppers, garlic, crushed tomatoes, all seasonings, and broth.
Stir to combine.
Press the CANCEL button to turn the sauté function off.
Set the lid and seal the vent of the instant pot. Press the HIGH PRESSURE button and set the timer for 15 minutes.
Once the time is complete, manually release the pressure.
Remove the chicken breast from the crockpot and shred them using 2 forks.
Return the shredded chicken back to the crockpot.
Stir in chopped cilantro and lime juice.