For a richer flavor, sauté the onions, carrots, and celery in a tablespoon of olive oil before adding them to the slow cooker. Feel free to customize this recipe with other vegetables such as kale, potatoes, or bell peppers. If you don't have Parmesan cheese, a sprinkle of nutritional yeast adds a savory note. This soup can be made ahead of time and stored in the refrigerator for up to 3 days. The flavors will meld even further! For a vegan option, omit the Parmesan cheese or use a vegan Parmesan substitute.
Bill Schaefer
Mar 13, 2025The flavor is amazing! Slow cooking really brings out the best in the vegetables and herbs.
Cleora West
Feb 20, 2024Easy to follow and delicious! I appreciate the tips for variations and substitutions.
Jaquan Reinger
Feb 17, 2024I've made this recipe several times now, and it's always a success. I sometimes add a dollop of pesto on top for extra flavor.
Ethyl Pacocha
Jan 9, 2024This recipe is a lifesaver on busy weeknights! I love that I can throw everything in the slow cooker in the morning and come home to a delicious, healthy dinner.
Kirstin Bogan
Jan 27, 2023I added a can of cannellini beans and some diced potatoes to make it even heartier. It was a big hit with my family!
Lauretta Bode
Oct 21, 2022I used gluten-free pasta and it worked perfectly. Great recipe for those with dietary restrictions.
Ezequiel Franey
May 28, 2022My kids are usually picky eaters, but they loved this soup! I will definitely be making it again.