One-Pot Lentil & Vegetable Soup with Parmesan

Heat oil in a Dutch oven or large pot over medium heat. Add 3 cups chopped onion, carrot and celery mix; cook, stirring occasionally, until softened, 6 to 10 minutes. Add 4 cloves garlic; cook, stirring often, until fragrant, about 30 seconds.

Stir in 4 cups broth, 1 ½ cups lentils, 1 can tomatoes, 2 teaspoons thyme, ½ teaspoon salt, ½ teaspoon pepper, ½ teaspoon crushed red pepper and Parmesan rind, if using. Bring to a boil over medium-high heat. Reduce heat to medium-low; cover and cook, stirring occasionally, until the lentils are almost tender, 15 to 25 minutes, adding water as needed to thin to desired consistency.

Stir in 3 cups kale. Cook, covered, until the kale is tender, 5 to 10 minutes. Remove and discard the Parmesan rind, if using. Stir in 1 ½ tablespoons vinegar. Divide the soup among 6 bowls; sprinkle with Parmesan. Garnish with 4 tablespoon parsley, if desired.