Spinach feta quiche is a dish that is a delicious combination of spinach and feta cheese. Spinach feta quiche recipe can be made from a simple pie-crust and a host of ingredients are required to prepare the filling including chopped spinach, onion, garlic, butter, olive oil, feta cheese, eggs, egg yolk, fresh cream, nutmeg and salt and pepper. The crust dough should be refrigerated for 30 minutes before rolling. The onions and garlic should be sautéed in the oil; the spinach goes in next to the cooking items. The feta cheese needs to be crushed over the spinach and mixed. The crust dough should be laid out and filled with the mixture. The spinach feta quiche is ready to be served once it has been baked.