Sorry fo the tardiness in coming up with this all important questions which need to be asked in the U.S.
1. Does this restaurant cook with/serve Certified Organic ingredients?
2. Do they offer USDA Certified Organic produce.
3. Is their meat farmed free range and fed with natural GMO free foods?
4. Are the meat grown free of enhancing chemicals?
...and so on.
In the U.S. we need to make a big push for natural organic foods because they are poisoning the public; the majority of whom are too busy struggling for survival or following sports on tv to make better nutrition choices.