The glory of vegetable soup is that you can incorporate any of your favorite vegetables or utilize what you have on hand in your pantry and refrigerator. I always recommend using onion, carrot, celery and garlic as foundation of the soup as it adds great flavor. Vegetable swaps: Swap out any veggies depending on the season. In the fall and winter, potatoes, parsnips, winter squash, cauliflower, cabbage and broccoli are great options. In the spring and summer, mushrooms, summer squash, corn, bell pepper, green beans, tomatoes and greens are wonderful as well. Add legumes: Add lentils or beans to bump up the protein and fiber content of your vegetable soup. Add grains, rice or pasta: Grains such as barley, farro, rice or pasta will make your vegetable soup even more satisfying. Make it creamy: Add some cream or coconut milk to add richness, or top the soup with a dollop of Greek yogurt or sour cream. Add flavor boosters: Experiment with a variety of herbs and seasonings or add citrus juice at the end to make the flavors pop. Tomato paste adds great depth of flavor, and a splash of soy sauce, tamari or coconut aminos will add umami flavor.