Spago Chef Wolfgang Puck's restaurants offer some of Las Vegas's most appealing deals. At Spago in Caesars Palace, the café menu serves delicious panini and salads for under $15. At Trattoria del Lupo in Mandalay Bay, Mamma Mia! ticket holders can order a $35 prix fixe. DETAILS Spago, 3500 Las Vegas Blvd. S.; 702-369-0360. Trattoria del Lupo, 3950 Las Vegas Blvd. S.; 702-632-7777.