This soup is made with water, which retains the flavors of the vegetables better than chicken stock would. Chunky Vegetable Soup. Serves 6 to 8. Leafy vegetable soup is the best alternative for those patients who want to change their mouth taste. Heat butter and oil in a Dutch oven over medium-high heat. Add the onion and celery, reduce heat to medium and cook 5-7 minutes or until beginning to soften. Leafy vegetables soup are the richest source of iron, calcium, magnesium, potassium, vitamin C, vitamin K, vitamin A and also have antioxidant properties. Instructions.