At Flanigan's, the mahi mahi—often referred to locally as dolphin—is grilled or blackened and served as a sandwich on a bun with classic toppings and sides. The kitchen treats the fish as a signature item, focusing on getting a well-seasoned crust while keeping the inside moist and flaky, so it stands up as a centerpiece among the bar-and-grill offerings. Eating it, you notice the contrast between the charred exterior and tender interior, supported by the softness of the bun and a side like fries or slaw that turns it into a full meal. Commentary over the years has repeatedly pointed to this mahi sandwich as one of the defining dishes of the restaurant’s seafood lineup.