Kristin Cavallari's Pregnancy Cravings: Cupcakes and Tacos

03/08/2012 at 01:50 PM EST

It's a high-calorie job, but somebody has got to do it – especially if that somebody is eating for two.

Kristin Cavallari sat as a judge on the Food Network's Cupcake Wars this week, and the expectant reality star couldn't have been happier.

Calling it a "preggers dream job," Cavallari told her Twitter followers on Tuesday: "Bring on the cupcakes!"

But the cravings didn't end with flour and frosting.



The next day, the former Hills star, who is engaged to Chicago Bears quarterback Jay Cutler, started getting visions of an L.A. Mexican joint.

"Freakin' Tito's Tacos is stuck in my heeaaad noooo," she Tweeted.