How many big bags of lettuce for 200 people?

The number of big bags of lettuce needed for 200 people depends on the serving size and type of event. Generally, a big bag of lettuce can serve around 20-30 people, depending on whether it's a main salad or a side. Therefore, you would need approximately 7 to 10 big bags of lettuce to adequately serve 200 people. It's always a good idea to err on the side of caution and prepare a little extra.