This recipe is from Threadgill's restaurant in Austin, Texas. It's the most delicious way to serve spinach! I've found it freezes very well after baking - I spoon 4 servings into quart-size freezer bags. Then when I want to serve, I let it defrost in the fridge for a day, spoon it into a microwave dish and reheat. It's just as good as the first time around.