Start by cooking the rice according to the package instructions so it's ready when the rest of your dish is done.
Set it aside and keep it warm.
In a large skillet, brown the pork sausage over medium heat until it's cooked through, breaking it apart as it browns.
Drain any excess grease and transfer the sausage to a plate.
In the same skillet, add the chopped chicken livers and cook them until they're browned and cooked through.
This should take about 5 minutes.
Add the onion, celery, and green bell pepper to the skillet.
Cook for about 5 minutes until the vegetables have softened.
Mix in the cooked rice, sausage, and chicken livers with the vegetables.
Season with salt and freshly ground black pepper to taste.