Crustless quiche recipes are available on FoodNetwork.com, Epicurious.com and TheKitchn.com. Food Network's master quiche recipe is a plain quiche recipe with suggestions for customizing it. Epicurious' recipe is for crustless quiche Lorraine, and The Kitchn offers a summer vegetable quiche recipe.
The Food Network recipe calls for preheating the oven to 350 degrees Fahrenheit and buttering the quiche pan, then sprinkling on grated Parmesan cheese. The custard contains half-and-half, eggs, egg yolks and seasonings. Fillings can include one or a combination of leeks, spinach, bacon, ham and herbs.
Cheese may be Gruyere, cheddar, Gouda, mozzarella or provolone. Filling the quiche pan involves layering in half the filling, half the cheese, then the other halves of the filling and cheese, and topping with the custard. The quiche should be baked for 40 to 50 minutes until the center is set, then cooled on a rack.