Spanakopita is a traditional Greek dish made with phyllo pastry, spinach, and feta cheese. The phyllo pastry is layered with a mixture of sautéed spinach, onions, garlic, and herbs, then topped with crumbled feta cheese. The layers of phyllo become crispy and golden when baked, while the filling remains moist and flavorful. Spanakopita is often served as an appetizer or a main course and is a delicious way to enjoy the flavors of Greece.