Using the sauté function in an Instant Pot or pressure cooker, sauté the vegetables for 3-5 minutes.
Add the minced garlic and sauté for 1-2 additional minutes.
Add in the remaining ingredients - except the sausage - and stir to combine.
Lock the lid and ensure the sealing knob is turned to “sealing” or “closed”.
Cook on high pressure for 8 minutes if using regular white rice or 25 minutes if using brown rice. Allow the pressure to release naturally, about 15-20 minutes.
Remove the lid.
Add in the sliced andouille sausage and stir to combine.
Replace the lid to allow sausage to heat through with residual heat for 5 minutes.
Remove the lid and serve.
Notes
* Use ½ tsp cayenne pepper for mild and 1 tsp for medium. Add more if you prefer it spicy.** I don’t add salt; but if you prefer to enhance the flavor profile, add ½ -1 teaspoon of salt.