The total time it takes to cook a frozen pie ranges from about 90 to 105 minutes. The amount of time depends on the type of pie, density of ingredients and method used by the consumer.
During the holiday season, many cooks find that preparing fruit pies ahead of time, freezing them, then putting them in the oven when it is convenient de-stresses holiday cooking. In addition, many non-bakers choose to purchase frozen pies for quick and easy service. Experts recommend preheating the oven to 450 degrees Fahrenheit, cooking the pie 15 to 25 minutes at that temperature, and then lowering the heat to 375 degrees Fahrenheit for another 45 to 50 minutes baking time. It is often necessary to cover the edges of the pie's crust with aluminum foil to avoid burning.