Spinach and feta triangles are a delicious appetizer or snack made with phyllo dough, spinach, feta cheese, and herbs. The phyllo dough is layered with a mixture of sautéed spinach, crumbled feta cheese, onions, garlic, and herbs, then folded into triangles and baked until crispy and golden. The combination of the flaky phyllo dough, the savory spinach filling, and the tangy feta cheese creates a flavorful and satisfying bite-sized treat. Spinach and feta triangles are perfect for parties or as a light snack.