Bistec, which translates to 'steak' in English, is a classic meat option in El Retiro Park. It refers to thin slices of beef that are usually marinated and then grilled or pan-fried. Bistec is often served with a side of fries or a fresh salad. The tender and flavorful meat makes it a popular choice for those looking for a hearty meal while enjoying the park's beautiful surroundings.