Spinach, Caramelized Onion, and Feta Quiche
To decrease fat, we've used 2 egg yolks and 5 egg whites in this quiche recipe. Some egg yolks are necessary to produce a creamy filling. You can refrigerate the leftover yolks for up to 3 days in an airtight container (add a tablespoon of water so the yolks don't develop a film).