Ingredients

2 tablespoons olive oil

1 yellow onion, diced

4 garlic cloves, minced

3 celery stalks, finely diced

1 1/2 cups chopped tomatoes

1 1/2 cups dried red lentils

1 turnip, peeled and diced

1/2 cup chopped fresh flat-leaf parsley

1 teaspoon red-wine vinegar (optional)

Coarse salt and pepper

Preparation

In a pot, heat olive oil over medium heat. Add onion, garlic, and celery; cook, stirring, until tender, 6 to 8 minutes.

Increase heat to high and add tomatoes; cook for 1 minute. Add lentils, turnip, and 6 cups water.

Bring to a boil, then reduce heat and simmer until lentils are tender, 20 to 25 minutes. Stir in parsley and vinegar. Season with salt and pepper.