Add ingredients to the instant pot in the order listed.
Place the lid on the instant pot. Set the pressure valve to seal. Set the "Meat" setting to 1 hour.
Once the hour has passed. Hit the cancel button to turn off instant pot. Let in naturally pressure release (NPR) for 30-45 minutes. Open the pressure valve to release any remaining pressure. Open the pot and stir.
Typically if I am adding meat that has already been cooked, I will add it to the pot after I'm done cooking the other ingredients. I did that when I had left over Turkey from Thanksgiving. No need to cook it twice. I've also done that when I've oven roasted or IP cooked a whole chicken.
Instant Pot Dog Food by Hobby Stash at https://www.hobbystash.com/dining-in/instant-pot/instant-pot-dog-food/