This is the VERY BEST crustless zucchini quiche! Added flour sinks to the bottom during cooking, creating a thin pancake-y 'crust'. Creamy, cheesy and packed with tasty caramelized onions and zucchini and garlic, you'll be amazed with the fluffy soufflé like texture and crunchy top. This is so much easier than making a regular quiche since it 'magically' makes its own crust in the oven.