Baked, mashed and roasted potatoes are easy ways to serve potatoes to a crowd. For a cold potato dish, AllRecipes.com has a potato salad recipe for 40 people that calls for 10 pounds of potatoes and 24 eggs.
Baking a large quantity of potatoes is quite simple with a three-rack oven. Preheat oven to 400 degrees Fahrenheit. Clean and dry whole potatoes and then pierce each several times with a fork. Rub each potato with oil and sprinkle with salt if desired. Arrange potatoes on three large sheet pans and then bake until tender for 1 to 1-1/2 hours, rotating the sheets every 30 minutes. BHG.com recommends a buffet-style baked potato bar, which can be prepared while the potatoes are baking. A few of BHG.com’s top 10 baked potato toppings are onions, crispy bacon, sour cream and cheese.