We are spending a couple of months in Melbourne Beach and have been frequenting the Sandbar every Tuesday night for Taco Tuesdays. We have enjoyed it. On Tuesdays tacos are only $2 each and they are big tacos with all the dressings. The Baja tacos are awesome and are fried fish tacos seasoned with a Mexican bent. The Sandbar also has a small full service bar and 4 or 5 draft beers on tap.
If you go be sure to get there early as the place gets a little packed by the locals who go every Tuesday.