Popeye's Chicken Sandwich
The quality of the sandwich can vary depending on how fresh it is. When it first came out they were turning over so quickly that they didn't get a chance to sit around, so you always got a fresh one. Now that isn't always the case. Likewise, sometimes you can get one with too much mayo on it -- it just needs enough to give it some flavor and keep it moist, if it's dripping out the sides it's too much.