Pan-Stewed Cauliflower and Spinach with a Spicy Tomato Sauce

Whenever there are curry leaves in a dish, my students, who may never have come across their presence before, ask whether it’s okay to eat them. When they are left whole, as in this recipe, we eat around them. They are perfectly edible, but they are used in recipes like this to gently flavor the sauce, so you don’t really want to overwhelm the flavor by eating a whole leaf. The more chopped up they are, the more intense the flavor, and eating them in this form is just fine. However, don’t l