Quick Service Restaurants (QSRs) are a popular dining option characterized by their fast service and limited menu offerings. These establishments prioritize speed and efficiency, allowing customers to quickly order and receive their food, often through drive-thru or counter service. Common examples include McDonald's, Subway, and Taco Bell. QSRs cater to a wide range of tastes and preferences, providing affordable meals that appeal to busy individuals and families. The focus on convenience and quick turnaround times has made them a staple in modern dining culture, especially in urban areas where time is of the essence.