– 1 cup of dried green or brown lentil – 2 tablespoons of olive oil – 1 onion, finely chopped – 2 carrots, diced – 2 celery stalks, diced – 3 cloves of garlic, minced – 1 teaspoon of ground cumin – 1 teaspoon of ground coriander – 1/2 teaspoon of smoked paprika – 1 bay leaf – 6 cups of vegetable broth – 1 can (14 ounces) of diced tomatoe – Salt and pepper to taste – Fresh lemon juice (optional, for garnish) – Fresh parsley or cilantro (optional, for garnish)