We live in Arlington, so we are not very familiar with our options in Rockville or Bethesda. Looking for good American food -- non chain -- that is nice/casual for about 30-35 guests. They are not very adventureous diners. Don't require a private room, but a somewhat separate indoor area or patio would be great. Middle of the road price range is our target. I know, that's not alot of info, but any recommendations would be greatly appreciated.