From the outside, you might think that 300 East is an expensive, very formal restaurant. Quite the contrary. While not McDonald's-casual, it's a casual setting in an historic house, and the prices are very reasonable for its Dilworth address.
The menu is very contemporary. They have traditional American items with a gourmet twist. Their Ahi Tuna Burger is delicious (and for only about $10, it's a great deal), but I usually stick to soup and salad, as 300 East has a soup-and-salady feel to me. The Soup of the Day (you can't go wrong no matter what it is) and Seared Ahi Tuna Salad (do you see a recurring theme here?) make a great, light combination. And don't forget to add on their specialty Matilda Wong drink (you're only allowed two!).
Try to sit in a high-backed booth or outside on their nicely decorated terrace. The booths provide an intimate dinner experience for you and a loved one or a small group of friends and the terrace allows you to enjoy the fresh air and relaxing atmosphere. At least until some hoopty happens down East Blvd, spouting smoke and blaring music.