"Λαδερά" refers to a category of Greek dishes that are primarily vegetable-based and cooked with olive oil. These meals often include ingredients like tomatoes, zucchini, eggplant, and various legumes. They are typically seasoned with herbs and spices, making them flavorful and nutritious. These dishes are popular in Greek cuisine, especially during the Lenten period when many people avoid meat and dairy. "Λαδερά" can be served as a main course or a side dish and are appreciated for their simplicity and health benefits, showcasing the Mediterranean diet's emphasis on plant-based foods.