Summer Meals Reaching Every Area's Child Hunger Act of 2023 or the Summer Meals REACH Act of 2023 This bill permanently extends certain modifications to the Summer Food Service Program that were authorized and implemented to respond to COVID-19. The changes generally expanded the program, which provides free meals to children in low-income areas when school is not in session. Specifically, the bill permanently makes all children eligible to participate in the program. This includes requiring reimbursement to camps for meals served to all children. The bill also specifically allows for non-congregate meal distribution, which is meal distribution outside of the typically required group, or congregate, setting (e.g., grab-and-go meal service). Further, the bill expands eligible service institutions by allowing for on-site or off-site food service monitoring.