Rice is grown in Iran north of the Alborz Mountains close to the Caspian Sea. It is certainly on every restaurant table we visited. But apparently it is not as prevalent as bread. We saw a lot of wheat growing as we traversed the country.
Rice with a decoration of yellow saffron rice was the standard.
Occasionally we’d have a rice mixed with herbs.
In Na’in on the way to Esfahan, we had a pilau with rice, lamb, and raisins which was superb.