I used to think that there are only a few ways be make Quiche. With ham and cheese or spinach... You can add anything to Quiche really. Here is a basic Quiche recipe:
2 cups (1/2 l) of milk, cream or half and half
I have a 11 inch (28 cm) pie pan and usually get the Pillsbury pie crust usually by the eggs and cheese. In France there are a million different type of pie crusts that you can buy. Just don't get the yummy vanilla one (which is perfect for an tarte aux pommes) and you will be fine. If your pie pan is too small you will have to adjust the eggs and milk.
Preheat Oven to 425 F (220 C). Mix your eggs and milk in a bowl. I usually season with pepper, no salt as many things I add are already salty. You can also add paprika. Then pour the mixture into the crust. Now add stuff. Sort of push stuff down into egg/cream mixture and bake for 40-45 minutes.
Here are some ideas for stuff:
Ham (1-2 cups) and Cheese (2 cups), traditionally swiss cheese, but I accidently bought some Monterey Jack cheese recently and the family loves it.
Ham (1-2 cups), Broccoli (1 cup) and Tomatoes (1 cup). Cut the broccoli and tomatoes into small pieces.
Turkey instead of Ham. Sometimes when I am making Quiche, I don't have an deli meat or ham lying around and so I substitute turkey deli meat.
Tomatoes and Broccoli, you will probably need to add a little salt in this case.
Onions 1/2 c -- can be added to any combo above.
What's your favorite Quiche?