Check out the online menu - it's not quite complete, as there are daily specials (grilled salmon today) and soups, and the fish in the fish-and-chips can often be selected (catfish or, today, pollock) but you'll get the idea.
Entrees come with slaw (creamy, pleasant) and A LOT of fresh-cut fries (pretty good) and a beverage.
It's a family place, order at the counter and your food will be cooked to order and brought when ready. That made my (cat)fish and chips wonderfully fresh-tasting, a huge portion (4 nice-size fillets). My kids' hot wings were also a super-sized portion (12 wings amply coated in a sauce that was quite hot).
Service with a smile (if a teensy bit clueless - I think it may have been the counter girl's first day) but all ended well.
It's in Haymarket - WAIT! Don't turn away! - I wouldn't travel from home (Arlington) just for this, but if I'm in Centreville or Manassas again this is definitely a must-visit. Out 66 to the Haymarket exit (Rte 15), that's just a bit past the Manassas exit, and it's just two quick turns (less than a mile) from the exit.
Even my seafood-phobic family will definitely return!