Place chicken breasts in your Instant Pot. Sprinkle with the seasoning blend (garlic powder, chili powder, cumin, paprika, salt, and pepper) and pour the salsa over the top. Make sure the vent is open, then press Slow Cook three times until it’s on the “More” setting. Cook for 4 hours total. Slice your bell peppers and onion while the chicken cooks. About 2 hours in, add the sliced peppers and onions to the pot. Close the lid and make sure the vent is open. Once cooked, remove the chicken breasts, shred them with two forks, then return them to the pot and mix everything together. Serve with rice, black beans, or tortillas. Enjoy!