How much re-fried beans for 100 people?

To serve refried beans for 100 people, you typically need about ½ cup of beans per person as a side dish. This amounts to approximately 50 cups of refried beans in total. Since 1 can of refried beans is about 2 cups, you'll need around 25 cans, or about 12.5 quarts if you're making them from scratch. Adjust the quantity based on whether the beans are the main dish or a side.