Viva Burrito Company has zero decor, zero ambience (unless you're really turned on by cement) and is basically just a little red box with a kitchen, but the food coming out of that kitchen is fantastic. Not white-tablecloth fantastic; plastic-silverware-and-paper-napkin fantastic, with a serious "Gimme twenty bucks and I'll show you the real Mexico" vibe. The show starts with Viva's excellent breakfast burrito, which the joint starts serving very early on weekend mornings, when the line at the drive-thru starts winding out into the street and the crowds spill into the parking lot. It's breakfast-burrito pandemonium, a friggin' Benetton ad for Denver's booziest middle demographic. You want fast? There are plenty of Taco Bells open until the wee hours. You want the best? Get in line at Viva.