You always order the specialty when you go to your favorite restaurant. You’re not alone, which means restaurants make their most popular dishes over and over, and the ingredients really add up. We’re talking 1,000,000 avocados a year to bring guacamole to the masses at the 15 Rosa Mexicanos across the country and 56,500 pounds of potatoes to make French fries at one Washington, D.C. brasserie. We took a look at the most popular dish at eight hot spots across the country to get a sense of what exactly a restaurant does to get you (and everyone else) your fave meal. Click through to see the staggering results.