How much mac n cheese to feed 60 guest?

To feed 60 guests mac and cheese, you'll need approximately 15-20 pounds of dry pasta, which typically yields about 30-40 pounds of finished dish, considering the addition of cheese, milk, and other ingredients. A standard serving size is about 1 cup per person, so plan for around 60 cups total. It's always a good idea to prepare a bit more to account for varying appetites.