As a product manager at Meta, I would approach building a food delivery service for businesses by conducting extensive market research to understand the needs and pain points of both businesses and consumers. This would include identifying the key players in the market, analyzing their offerings, and conducting user research to understand what features and functionalities are most important to users. Based on this research, I would work with a cross-functional team to develop a product roadmap that outlines the key features and milestones for the food delivery service. This would include identifying the technology needed to power the service, such as a mobile app and website, and establishing partnerships with restaurants and other food providers to ensure a wide variety of options for users. To ensure a seamless user experience, I would prioritize features such as easy ordering and payment options, real-time tracking of food delivery, and user-friendly interfaces. I would also work closely with the operations and logistics teams to ensure efficient delivery and customer service. Finally, I would develop a comprehensive marketing and launch plan that includes targeted advertising, social media promotion, and partnerships with businesses and other organizations to increase awareness and adoption of the food delivery service.