So how are you coming along with eating all 35 trillion-plus combinations (their number, not ours) of Freebirds World Burritos? Have one of them on the Austin-based, fast-casual chain today when the Westport location (554 Westport Road, 816-531-5407) offers free burrito halves and drinks to celebrate nine months of rolling fatties. But first, the official ribbon cutting with the Kansas City Chamber of Commerce. No purchase is necessary (although we do endorse the pot brownies and anything covered in the poblano salsa). The event begins at 11:30 a.m.