2015 Update: The price has been raised to $25.15. It is still a good meal at that price.
Estiatorio Milos at the Cosmopolitan has a $20.13 lunch special that I consider to be one of the best deals around. Estiatorio Milos is a Greek restaurant, specializing in seafood. It is located on the 3rd floor. It is easy to miss since it is located behind the escalators and next to the P3 Studio. You can dine inside or enjoy a the fresh air and a great view of the Strip from their terrace.
The lunch menu is a prix fixe menu for $20.13 with your choice of 1 appetizer, 1 main course and 1 dessert. There are additional charges for a few items, but there are no substitutions and there is no a la carte menu available during lunch. Neither of those are a problem. Appetizer options include a Greek Meze Plate, a Diver Scallop Skewer, Tomato Salad and Grilled Octopus. The Grilled Octopus (which has a $10 upcharge) is the best octopus I’ve ever had. It was extremely tender and flavorful. Main course options include Honjake Salmon, an Organic Chicken Breast Skewer, a Tuna Burger and Lamb Chops. The salmon was more mundane, but I think anything coming after the grilled octopus would be at a disadvantage. Dessert options are seasonal pie, a Yogurt Martini and seasonal fruit. Having the option of fresh seasonal fruit for dessert was really nice.
Lunch at Estiatorio Milos has replaced the Palms Power Lunch as my favorite Las Vegas lunch special.
Lunch is served from noon-3:45p daily.
You can view the online menu here.