How far ahead can you make lasagna before cooking?
You can prepare lasagna up to 24 hours before baking it. To do so, follow these instructions: Assemble the lasagna in an oven-safe container and store it in the refrigerator. The temperature should be at or below 40 degrees.
Should you make lasagna ahead of time?
You can make it ahead. The lasagna needs at least 5 hours to chill and let the sauce soften the noodles, but you can definitely make it the night before (even 3 days before) and bake it when you need it. Wrap it up in foil once you assemble it, no need to bake it beforehand. Then stash it away for dinner emergencies.