Veggie burgers refer to plant-based patties that are made from a variety of vegetables, grains and legumes. These patties can be used as an alternative to traditional meat-based hamburgers or sandwiches, providing a source of protein without the use of animal products such as meat, dairy or eggs. Veggie burgers are often marketed towards people who follow vegetarian or vegan diets and are looking for convenient and tasty plant-based options.