Sometimes it's hip to be a square quiche, or at least a rectangular one, especially when you want a large tart that makes neat little appetizer portions. This is an excellent party quiche because most people like broccoli. And by simply omitting the sausage you have a meatless version. You can even put the sausage on half, if you prefer. To make the neatest slices, cool then refrigerate the quiche, cutting while cold. Rewarm in a low oven or bring to room temperature before serving.