WFPB (Oil-Free) Variation
To keep this dish oil-free and WFPB-compliant, simply sauté the onions, celery, carrots and garlic in a thin layer of vegetable broth or water in lieu of olive oil. If your vegetables start to stick to the pan, just continue adding a little more broth or water as you sauté them. In this version, we highly recommend using non-stick cookware to prep these vegetables.