If you're willing a drive a bit, there's Austin Grill in the Burke area. Good grub, probably the best I've had in the area. There's a little place in Alexandria (the Del Ray area off Mt. Vernon Ave) called Poblanos. They make a chicken burrito to die for and a selection of delicious tacos. Come with an appetite. Alexandria also has an Austin Grill on King St.
Too bad about Tia's. Not that
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Fairfax County General