Mario Batali doesn’t think $15 minimum wage is good for restaurants or foodies

Higher labor costs so not cut into anybody's profits. Instead these artificially higher wages are added on to the bills of consumers (diners, in this case). Our, alternatively, employers, in order to keep prices lower, could cut the number of employees, leaving some with NO paycheck.
I will add that those higher consumer costs, could incentivize diners to eat out less due to the higher cost. Causing restaurants to go out of business, leaving even more with no paycheck. This is not politics, this is economics. One can ignore the law of supply and demand... One cannot ignore the results of the law of supply and demand. Even socialist countries are bound by this law though they wish to believe otherwise. Regards.

It cuts into his profits, so of course he find reasons not to like it

Not to mention that he has been caught ripping off workers himself and paid millions in fines for doing so, just another crook