Step 1

In a non-stick fry pan, brown the sausage until it's fully cooked and caramelized and set aside.

Step 2

In a large soup pot, heat some olive oil and when hot add and sauté onions for a few minutes.

Step 3

Add celery and carrots and continue to sauté until they start to soften.  Add garlic and when fragrant add a couple cups of chicken stock to avoid burning the garlic.

Step 4

Add the fresh herbs, tomatoes and incorporate the cooked sausage.  Stir well to combine.  Add the red and brown lentils and enough broth to cover all the ingredients. Bring to a boil, then reduce to a simmer.  Let the soup simmer for about 30 minutes, or until the lentils are tender.

Step 5

If using sweet potatoes, add the Kale about 15 minutes before the soup is done to ensure they are cooked but not mushy.

Step 6

Adjust the seasoning with salt and pepper. Add more broth if the soup is too thick.

Step 7

Serve the soup hot, topped with grated Parmesan cheese and a drizzle of olive oil if desired.

Step 8

This Lentil Soup is not only a hearty and filling dish but also packed with nutrients from the lentils and fresh vegetables. It's perfect for a cozy dinner on a cold day or as a nutritious option any time of the week. Enjoy this rustic, flavorful soup with a slice of crusty bread for a complete meal.