Lentil soup is packed with hearty vegetables like carrots, celery, kale, and brown lentils. This soup is ready in 30 minutes and is the perfect recipe to clear out your fridge!
Sautè the vegetables. Place a large pot over medium heat. Once the pot is warm, add the olive oil. Add the onion, garlic, carrots, and celery and sautè for 3 minutes.
Add the rest of the ingredients. Pour the crushed tomatoes and vegetable broth into the pot. Add the lentils, thyme, oregano, bay leaf, red pepper flakes, and cracked pepper. Reduce the heat to a simmer and cook for 25 minutes. Add the kale or spinach and cook for 5 more minutes. Once the lentils are soft, add salt to season.
Serve. Serve with your favorite crunchy bread. Mangia!