Spinach and feta triangles are a delicious appetizer or snack made with phyllo pastry, spinach, feta cheese, and herbs. The phyllo pastry is cut into triangles and filled with a mixture of cooked spinach, crumbled feta cheese, onions, and herbs. The triangles are then baked until golden and crispy. These savory treats are perfect for parties or as a light lunch and are sure to be a hit with your guests.