We will be travelling to DC in a couple of weeks and meeting family from the Midwest. I'd love to get a few recs on restaurants that serve up good food in an unpretentious setting. Would like to keep prices in the moderate range (less than $25-30/pp for dinner), but if it's worth it we'll spend more. And we're not afraid of super cheap hole-in-the-walls either. Most likely we'll be staying somewhere central near the Mall, museums, etc. Also need ideas for breakfast and lunch. Thanks for the help!