The Keyport Fishery (150 W Front St, 732-264-9723) is a fishmarket that sells delicious fried fish at lunchtime. You can order fried flounder, haddock, shrimp or scallops by the pound or on a sandwich platter. I've tried the flounder and scallops -- both were extremely fresh with a fine-textured crispy breading. At first I thought the breading lacked salt but the fluffy homemade tarter sauce complements it well. Sandwiches are served with 2 slices white bread, good coleslaw, and decent crinkle-cut fries.
It's a white building in the marina section next to a bridge -- very-oldfashioned. The giant ornate silver cash register is the highest-tech thing in the place. The employees develop a grudging friendliness with each visit, but don't ask anything stupid like "Can I get this to go?" (It's a good thing you want it to go, cause that's the only way you're gonna get it. Do you see any tables in here?)
Keyport is in Monmouth County near Exit 117 off the Garden State Parkway.