I'm a little late in getting this posted. We went for a drive up to Mt. Lemmon on Memorial Day. I believe everyone else in Tucson had the same idea. The road was quite busy both ways with holiday traffic, but it still was a pleasant drive - since we were not in any hurry and just enjoying the day. The weather was a beautiful 91 degrees at the bottom of the mountain and decreased to 69 degrees at the ski resort area. We made it just in time for lunch (boy was our timing good or what?), so stopped at the Iron Door at the ski resort for a tasty lunch of a salad and brats/german potato salad/red cabbage, which was quite tasty.
The inside the Iron Door restaurant is a rustic cabin feel. They also have a nice patio for eating outside, but we took an inside table so the wait was not as long.