Quiche is an egg and cheese pie that you can freeze before or after cooking. When wrapped carefully, frozen leftovers last up to two months. Prepare quiche in advance and freeze it up to one month before cooking. The most important aspect of freezing quiche is avoiding freezer burn. Label the package with its contents and the date.
Freeze leftovers when there is too much to consume within a few days. Slice the quiche into single portions once it has cooled completely. Enclose each piece individually in cling film. Store them together in an aluminium or freezer-safe pie plate wrapped in cling film and covered in aluminium foil. Another option is to tightly gather individually wrapped slices in a large piece of aluminium foil. Cover the foil with two joined paper towels. Slide the package into a gallon-size plastic freezer bag. Press out as much air as possible before sealing it shut.
When freezing quiche before cooking, use your favourite ingredients that freeze well, such as cooked bacon or spinach and sautéed onions. Do not use any foods that were previously frozen and thawed. When the quiche is ready, wrap it in freezer paper. Tightly cover it with aluminium foil. Cover this with two attached paper towels. Slide it into a plastic bag. Seal it tightly and place the package on a flat tray. Put the tray on a level surface in the freezer. After several hours, the empty tray can be removed to conserve space.
When a whole cooked pie is left over, leave it in the pie plate. Cool it completely. Wrap the quiche tightly in plastic. Cover it securely in aluminium foil. When a partial pie is left over, remove it from the pie plate. Slice it into two manageable pieces. Wrap it in plastic, then aluminium foil. Freeze it.
To reheat leftovers, unwrap them and place them in a pie plate or on a baking tray. Bake at 176 degrees Cor 20 minutes or until hot. Another option is to place a slice on a microwave-safe plate and cover it with a paper towel. Microwave it for about 90 seconds or until hot. For an uncooked frozen quiche, unwrap it and place it in the oven according to the recipe's cooking directions. Add about 15 minutes to its original cooking time. Insert a knife in the centre to see if it is done. When it comes out clean, the quiche is ready to serve.