Combine chicken, trinity, garlic, bouillon, salt, and Two Step in pot. Cook on high heat for 15 minutes, stirring often to avoid sticking.
Add sausage and cook for additional 15 minutes. Add cream of mushroom and celery, cook 5 minutes still stirring often.
Add water. As your bringing it to a rolling boil, add all remaining ingredients except rice.
Once you reach a rolling boil, add the rice. It's very important to stir at this point to keep the rice from sticking to the bottom of the pot. Stir until liquid starts absorbing into the rice.
You'll notice more rice present on the surface. At this point, reduce heat to a minimum and place lid on the pot. Let cook for 30 minutes, NO PEEKING for the whole 30 minutes.
When time is up, fluff the rice and let any liquid go to the bottom. Replace lid for 10 more minutes.