Add the celery, onion, bell pepper, and garlic to the bottom of a 5 quart or larger slow cooker.

Add the sliced sausage slow cooker, along with the cubed chicken, oregano, thyme, paprika, cayenne, and freshly cracked pepper.

Pour the diced tomatoes and all their juices over the meat and spices in the slow cooker. Add the chicken broth and a handful of chopped fresh parsley. Stir briefly.

Place the lid on the slow cooker, turn the heat on to high, and cook for four hours.

After four hours, the liquid in the slow cooker should be boiling. Remove the lid and add the rice, making sure it is fully submerged. Replace the lid quickly and set the slow cooker back to high.

Let it continue to cook on high for 20-25 minutes, or until the rice has absorbed most of the liquid.

Remove the lid, test the rice to make sure it’s tender, then stir to fluff the ingredients (don't stir too vigorously or the rice will become gummy). Sprinkle the sliced green onions over top, then serve.