This gumbo is packed full of delicious flavors.
Add oil to pot, press Sauté button and wait for display to read "Hot." Add sausage and onion. Cook for 3 minutes stirring occasionally.
Add bell pepper, garlic, salt, peppers, diced tomatoes, shrimp, and one cup of water to the pot.
Secure lid, turn pressure valve to sealing, and press manual button. Set time for 6 minutes.
Do a quick release when the cook time has ended.
Mix together cornstarch with 3 tablespoons of water using a fork and stir until smooth.
Set pressure cooker back on sauté. Pour cornstarch/water mix into the pot and stir to thicken. Turn pot off and serve over rice or with cornbread.