Vegan Lentil Soup Recipe

Name: Vegan Lentil Soup Recipe
Ingredients: 2 tablespoons olive oil; 1 medium onion, finely diced (about 1 cup); 1 large carrot, peeled and finely diced (about 1 cup); 2 stalks celery, finely diced (about 1 cup); 2 medium cloves garlic, minced (about 2 teaspoons); 1 pound dried brown lentils, picked over; 1 bay leaf; 2 quarts water or vegetable broth; Kosher salt; 1 tablespoon sherry vinegar or lemon juice (from 1 lemon); 1/2 cup chopped parsley; Freshly ground black pepper