Add olive oil to the bottom of the instant pot.
Put chicken breasts in the instant pot.
Add the tomatoes, onions, minced garlic and tomato sauce.
Pour the salsa directly on top of the chicken.
Place the lid on your Instant Pot, and lock it into place.
Place the vent on seal.
Use the manual setting, and set it to 13 minutes.
Release pressure by doing a quick release.
Use two forks to shred the chicken right in the pot.
Garnishwith lime juice and chopped cilantro.