McDonald's is another well-known fast food chain that can be found at Retiro subway station. They offer a range of burgers, including the iconic Big Mac, Quarter Pounder with Cheese, and McChicken. McDonald's burgers are made with 100% beef patties and are served with their signature sauces and toppings. Whether you're craving a classic cheeseburger or a specialty burger, McDonald's has plenty of options to satisfy your hunger.