Heat canola oil in a pressure cooker using the saute setting.

Add chopped onion and sliced smoked sausage; cook until sausage is lightly browned.

Add minced garlic and cook for 1 minute.

Stir in 4 cups of chicken broth, uncooked rice, salt, and pepper.

Lock the pressure cooker lid, ensuring the vent is closed.

Select manual setting and set the pressure to low for 3 minutes.

Allow pressure to naturally release for 10 minutes, then quick-release any remaining pressure.

Check that the rice is tender.

Select saute setting again.

Stir in shredded rotisserie chicken and remaining 1 cup of chicken broth.

Cook until chicken is heated through, about 5 minutes.

Sprinkle with green onions, if desired.

Serve with hot sauce.