Easy Lentil Soup

Name: Easy Lentil Soup
Total time: 90 min
Yield: 4
Ingredients: 2 tablespoons grated zest and 2 tablespoons juice from 1 to 2 lemons; 1/2 cup chopped fresh parsley leaves; 6 medium cloves garlic, minced (about 2 tablespoons); 1/2 cup extra-virgin olive oil, divided; Kosher salt and freshly ground black pepper; 1 large leek, white and pale green parts only, finely chopped (about 1 cup); 1 medium onion, finely diced (about 1 cup); 1 large carrot, peeled finely diced (about 1 cup); 2 stalks celery, finely diced (about 1 cup); 1 pound dried brown or Puy lentils; 2 bay leaves; 2 quarts homemade or store-bought low-sodium chicken stock or vegetable stock