Harissa Cauliflower Lentil Stew with Lemon

Name: Harissa Cauliflower Lentil Stew with Lemon
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Cuisine: African
Ingredients: ½ cup uncooked red lentils; 1 cup water; ¼ teaspoon salt; 1 tablespoon olive oil; 2 tablespoons ghee (or olive oil to keep it vegan); ½ large yellow onion, minced; 3 cups bite-sized cauliflower florets, about ¾ of a pound of cauliflower head; 2 tablespoons lemon juice; 1 tablespoon spicy harissa (see note); 1 15oz can crushed tomatoes; 1 ½ cups vegetable broth or water; Salt, to taste; Zest from one lemon; Cilantro, for serving; Toasted sesame seeds, for serving