Yes. To prep mac and cheese the night before, simply follow all the instructions up until baking the dish. After the sauce & pasta is combined and placed in the baking dish, cover with aluminum foil or plastic wrap and place in the fridge. When ready to eat the mac and cheese, set on the counter for 10-20 minutes to bring the dish to room temperature. Top with extra cheese and breadcrumbs. Then bake according to normal baking instructions.