Image credit to: Boston Organics
1. Combine lentils, tomatoes, water, onions, sweet potato, peppers, carrots, and turnips in a medium-large saucepan.
2. Bring to a boil, then reduce heat to medium-low and simmer for 45 minutes or until vegetables and lentils are soft. Stir occasionally, breaking up the tomatoes.
3. Add garlic and kale leaves and continue to simmer until kale is soft. Serve topped with finely grated cheese or chopped parsley, if desired. Season to taste with salt and pepper.