Yes! You can easily prepare this mac & cheese ahead of time! Simply prepare the mac & cheese as directed, but hold off on the breadcrumbs/almond meal and don't bake it! Cover the dish and set it in the refrigerator for up to 2 days. When you're ready to bake, uncover it, top it with breadcrumbs and bake for 20-25 minutes, until bubbly and the top begins to brown. Broil for the last 2 minutes to brown the top even more, watching closely to not burn the cheese.