Plum Delicious is one of those small restraunts in an out of the way location that you can easily miss. Don't!
It's has a very comfortable, non-smoking atmosphere, full of arts and antiques inside. The food selection is classic American, with burgers, salads, steak, seafood, etc. Burgers run at $8-ish, with full dinner fare averaging $12-$18. The service is wonderful, as is the food.