An Alsatian tart (also known as tarte flambée) is more like a flatbread than a tart. Here are three of my favorite versions. The no-fuss crust is made with store-bought pizza dough, which you can top with whatever you like. A good rule of thumb when making up your own combinations is to keep it fairly simple and on the lighter side, weightwise. Going with just three to four ingredients allows each one to shine, and it keeps the toppings from toppling off the crust as you’re eating.