Robots are already capable of doing many things for us, including delivering our food. Take the ATEAGO F2 for instance: it is an autonomous robot with obstacle avoidance and anti-fall feature that can carry 4 trays of food. It has a thin body and can navigate narrow areas.
This robot comes with automatic charging. It has a 7-inch display, 3D camera, LiDAR, and an emergency stop switch. You can find out more about it here.