Nope. Still need a manager and maintenance staff on site. Someone will have to receive shipments, process cash, ensure the machines are running, perform updates, reload the machines, ensure the machines are cleaned, etc. But with existing technology, you could reasonably get it down to 3 people max per shift.
How about this. At today’s robot prices and workers wages/pay packages would the robot investment pay off for the McDonalds you describe? To make this more interesting, how about if a McDonald’s franchisee who owns 200 of them says he will go this way. This way he pays lower prices for ‘bots.