This soup is simple, but delicious. It's excellent for the fall and winter seasons. The veggie sausage is optional, but highly recommended--it makes the soup much hardier. When served with bread, this soup makes for a great meal.
Ingredients (5-6 servings)
Add olive oil to a large pot and bring to medium heat. Add in the onion and cook for 3--5 minutes, until onions begin to become translucent. Add in the celery and garlic and cook for 2 more minutes.
Stir in the sweet potatoes and lentils, then add the veggie broth and diced tomatoes. Stir in the spices and bring to a boil. Lower the heat to a simmer and cook for 40 minutes. Meanwhile, sauté the veggie sausage and kale stems.
When the soup has finished simmering, stir in the kale leaves and add the red wine vinegar. Cook for 3 more minutes, then add the sautéed veggie sausage and kale stems.