Can ricotta be made with UHT milk? I live in an area where ricotta cheese is non existent, and all the dairy products I have access to are high temp pasteurized. Will that work?  Are there any herbs in ricotta? I'm trying to make my lasagna without it, and it would just would not be the same.
AFAIK, there are not herbs in ricotta, but there's nothing preventing you to add herb to it, I do it all the time when using it on toasts; and would be acceptable for a lasagna.