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Natalie Portman guested on this week's 'Top Chef: Las Vegas' and threw the remaining contestants a curveball with her vegetarian dietary requirements. The final seven chefs were prepared to create a reimagined TV dinner using a variety of meat at Tom Colicchio's Craftsteak restaurant, but were instead asked to prepare a dish using nothing but veggies.

In this clip, diners react during the elimination challenge to Chef Michael Voltaggio's asparagus salad, Japanese tomato sashimi and banana polenta. Although Voltaggio wasn't the winner of the challenge, diners responded favorably to his unusual pairing of polenta with banana.

Watch the video from TV's Top 5! after the jump.

"You can have a chef who wins every single challenge, but if the dish they put in front of us is the worst ... they are going home."

Contestants on 'Top Chef' can take heart: Judge Tom Colicchio remembers the great dishes as well as the terrible ones.

Just make sure to cook one of the former.

The New York chef, whose signature Craft franchise will open new branches in Atlanta and Foxwood's MGM casino, chatted with AOL TV about what makes a great chef, playing favorites and the profanity controversy.