If you like the flaky phyllo dough in traditional spanakopita, you might want to try phyllo in this recipe. We don't recommend it because a sheet of phyllo dough is too thin to hold the amount of filling in this recipe. You could purchase pre-made flaky phyllo cups from your local grocery store, but they're usually pretty expensive. So making the base for these from puff pastry is more budget-friendly. You could make your own pastry dough for this, if you wanted, but using store-bought puff pastry takes much less time and keeps this a really easy appetizer.