A vegetarian sandwich is a type of sandwich that contains no meat or fish, focusing instead on plant-based ingredients. Common fillings include a variety of vegetables such as lettuce, tomatoes, cucumbers, and bell peppers, along with spreads like hummus or avocado. Cheese and other dairy products may also be included, depending on dietary preferences. These sandwiches can be made using different types of bread, such as whole grain, sourdough, or ciabatta. They are popular among those following a vegetarian or vegan diet and can be customized to suit individual tastes, making them a versatile meal option.