You can bet McDonalds knows the unit cost for every thing they sell. Labor to the penny. So are you one of those “10 dollar hamburger if minimum wage doubles” people. If so you are being ridiculous.
The "unintended consequences" would overwhelm whatever positive effect may be created. It can be no other way. Call a minimum wage what it is...price controls applied in this case to labor. The market will not be denied.
You can put lipstick on a pig, but you cannot make it fly.