15 Minute Lentil Soup

In a medium saucepan, heat oil over medium heat. Add onion, carrot, celery, and garlic; season with salt and pepper and cook, stirring occasionally, until onion softens, 3 to 5 minutes.
Add broth, bring to a boil, and cook for 5 minutes.
Add lentils and cook until soup thickens slightly, 3 to 5 minutes. Stir in vinegar and season with salt and pepper.

Ingredient :

1 teaspoon extra-virgin olive oil

½ small onion, finely chopped

1 carrot, finely chopped

1 celery stalk, finely chopped

1 garlic clove, minced

Coarse salt and ground pepper

14 ½ ounces low-sodium vegetable or chicken broth

¾ cup cooked lentils (from a 15-ounce can), rinsed and drained

2 teaspoons red-wine vinegar