Giada De Laurentiis's GDL Italian (Las Vegas)

Giada De Laurentiis's GDL Italian in Las Vegas ranks as the priciest flop, with an average entrée costing $35—45% more than the typical Vegas Italian spot. While the glamorous Cromwell Hotel setting sparkles for Instagram, the lemon ricotta cookies and pasta portions feel designed for camera angles rather than appetites, weighing in 20% lighter than the average serving at rival restaurants on this list. The tiramisu, a $14 add-on, earned a flat 2.5 out of 5 from Eater critics, who noted it's less creamy than even frozen supermarket alternatives. Despite the celebrity draw, 67% of OpenTable reviewers cite overpriced mediocrity as their top complaint, making this a textbook case of style over substance.