Place the boneless chicken breasts in the bottom of the Instant Pot.

Cut the kielbasa into 1 inch disk and sprinkle around the chicken breasts.

Add the onions, peppers, carrots, celery, and garlic cloves to the pot.

In a medium bowl combine the tomatoes, tomato paste, tomato sauce, and seasonings. Mix well and pour over top of the chicken and vegetables in the Instant Pot.

Place the lid on the pot and turn to high pressure for 20 minutes. If you have frozen chicken put it on high pressure for 30 minutes.

Once the timer beeps allow the pressure to release naturally for 5 minutes then open the vent to release the remaining pressure.

Remove the chicken from the pot and shred. Return to pot and mix to combine.

Serve over top of rice.