Monahan's Seafood has been an Ann Arbor staple for over 40 years. Founded by Mike Monahan and Paul Saginaw in 1979, they are known for their fresh fish, knowledgeable staff and personalized recipes. My personal favorite are the oysters (best I have ever had by a mile, hence the t-shirt design) - I would eat them every day if I could. Now slinging t-shirts, too.
