Spinach and Feta Pie with Chickpea-Flour Crust

This spinach and feta pie with classic spanikopita flavors makes a fabulous breakfast, lunch, or dinner, and it’s just as good cold as it is hot—that is, really, really good! The use of chickpea flour in the crust keeps it gluten-free and simple enough to pour right into a hot cast-iron skillet. The frozen spinach in this spinach and feta pie will save you time and packs an iron punch, which is important for athletes.