How many cheesy potatoes to feed 75 people?

To feed 75 people cheesy potatoes, a good estimate is about 1/2 to 3/4 cup of cheesy potatoes per person, depending on whether it's a side dish or the main focus of the meal. This would translate to approximately 37 to 56 cups of cheesy potatoes in total. If you prepare around 50 cups, that should adequately serve your group, allowing for some extra in case of larger appetites.