Sean O'callaghan's is a real jewel in Plymouth. It captures the essences of a slightly upscale Irish pub quite well (it distinctly reminds me of one I visited in County Clare).
The food is superb and varied... you can get anything from fish and chips and shepard's pie to crab cake (my personal favorite). The prices are moderate to expensive- $8-$9 for a sandwich; $16 or so for a meal.
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