Start by heating the oil in a large skillet, or Dutch oven.
Add the onions, carrots, and celery. Saute for 3-4 minutes or until the veggies are slightly tender.
Add all of the spices and broth at this time. If you need to transfer to a baking dish, spray with non stick and pour the bread into the dish, then pour the broth and veggie mixture on top. Stir to combine.
If you are making this in a Dutch oven then simply pour the bread into the Dutch oven and stir to combine.