It's been an action-packed week for The Hills with two back-to-back episodes. In the first, a VMA night special, the crew literally jets to Las Vegas to celebrate Frankie's birthday. It's not all fun and games, however: Tension mounts between former best friends Lauren and Audrina. In episode five on Monday, Spencer and Heidi find their relationship strained as well, now that Holly has moved in. How much was the foodie in you paying attention? Dig in to our quiz to find out!

Photo courtesy of MTV