Ethiopian Airlines does offer passengers the option to request special meals on board. This service is designed to accommodate various dietary preferences and needs, such as vegetarian, vegan, gluten-free, and religious dietary restrictions, among others. To ensure that your special meal is available during your flight, it is typically advisable to make your request at least 24 to 48 hours prior to departure. This can usually be done during the booking process or by accessing your reservation online. It is always a good idea to check the specific meal options available on the Ethiopian Airlines website, as they provide detailed information regarding the different types of special meals offered and how to request them.