How to Store Lasagna
If you’d like to prepare lasagna ahead of time, we recommend freezing it before baking for best results – baked lasagna can be stored in the freezer, but it may dry out. Simply assemble the lasagna in a freezer-safe or oven-safe container and make sure it is tightly covered prior to storing. The lasagna can be stored this way whole or in individual portions
Before you bake the lasagna, defrost it in the refrigerator for 24 hours and add extra sauce, as needed. Once it has defrosted, bake it at 375 degrees for approximately 1 hour and 10 minutes. If your recipe calls for egg, the required baking time increases to approximately 1 ½ to 2 hours.
Ultimately, you want to bake the lasagna until its internal temperature reaches at least 160 degrees. Hearing or seeing the edges sizzling is usually a good indication that it is nearing or at the desired internal temperature.