Fatteh is best served immediately. The pita bread gets too soggy if it's stored in the fridge. However, if you want to prepare it in advance, simply follow the recipe and store the chickpeas, roasted eggplant and yogurt dressing in separate containers in the fridge. Store the toasted pita in an airtight container at room temperature. Then, all you need to do is assemble your fatteh and enjoy.