A very nice place to stop for a lunch is the Flying M Ranch....not all that far from Yamhill/McMinnville area. One big beautiful Log Building and Dude Ranch.
Better yet...drive up and have an evening meal....drink at the bar made from an Old Growth log which hangs from the rafters on two huge Cant Hooks.
Check for Elk and Black Bear while you cruise the hills....just mind the logging High Lead wires.