You can add any other veggies you like to this recipe as well since everything goes well with the flavors. Consider adding some fresh spinach or kale at the end and stirring it in for extra veggies. Other great options include celery, mushrooms, zucchini, peas, corn, and potatoes. You can also add herbs such as parsley or thyme for an extra flavor boost. Experiment with different combinations to find the perfect soup for you!