A simple spinach quiche recipe on Real Simple involves baking a mixture of store-bought frozen spinach soufflé, eggs and cheese in a pie crust. Another easy recipe for spinach quiche is available on MyRecipes.com.
Prepare a spinach quiche according to the recipe on Real Simple by thawing 24 ounces of store-bought frozen spinach soufflé, beating 4 eggs and grating 6 ounces of Swiss cheese. Combine all these ingredients together in a bowl. Season with 1/4 teaspoon of pepper.
Gently pat a refrigerated, store-bought, 9-inch pie crust into a pie plate. Transfer the spinach mixture into the pie crust. Bake the quiche at 375 degrees Fahrenheit for approximately 45 minutes or until the filling is cooked through.
To make a spinach quiche according to the instructions on MyRecipes.com, finely chop 1/2 of an onion and 1 clove of garlic. Cook the onion in 1 tablespoon of butter. When the onion softens, stir in the garlic and continue to cook for one minute. Allow the mixture to cool before distributing it inside a pie shell along with 10 ounces of thawed and drained frozen spinach and 1 1/2 cups of grated Gruyere cheese.
Whisk 3 beaten eggs with 1 1/2 cups of milk along with salt, pepper and nutmeg. Pour this mixture into the pie shell. Bake the quiche at 375 degrees Fahrenheit for approximately 45 minutes or until the custard is set and the top is golden brown.