u003cbr/u003eYes! There are several ways that this egg zucchini frittata can be prepped ahead.u003cbr/u003eu003cbr/u003eFirst, you can make the egg mixture and saute the vegetables up to three hours ahead of time, and then cook when you are ready to serve.u003cbr/u003eu003cbr/u003eAlternatively, you can cook the frittata ahead and reheat in a 350-degree oven when you are ready to serve.