onion rice recipe | onion pulao | simple lunch box with leftover rice with step-by-step photo and video recipe. Lunch box recipes are typically dominated by simple and flavored rice recipes. This is mainly due to the fact that flavored rice recipes are easy and simple to prepare, especially with leftover rice. One such easy and simple lunch box recipe is the onion rice recipe, which is not just easy to prepare, but also can be done within minutes.