Caldo verde is a traditional Portuguese soup served with potatoes and chorizo sausage. Its main ingredients include garlic and onion, olive oil and a special type of kale. This plant, called couve portuguesa or couve gallega, or simply Galician cabbage, gives the dish a green color. It can also be replaced with finely shredded curly kale or Italian cabbage. Caldo verde soup is delicious, thick and nutritious. It is perfect for cooler days. The dish is served in Portugal during major holidays and festivals.