The truck's specialty is the Percheron: A heaping hot burrito packed with carne asada, avocado and mozzarella cheese. But I think people really come here for the pepperoni. 

Diego Armando, who's been running this stationary taco truck What A Burro on South Twelfth Avenue for the past couple years, says Italian burritos are common where he's from in Hermosillo. He brings one out, unrolled with all the ingredients intricately layered like a casserole: carne asada, pepperoni, mushrooms, avocado and mozzarella cheese.

They don't do this on the tacos, so I got the Percheron piled high with plump cuts of diesmillo and topped with avocados and a sprawled out green chile. Gosh, I love carne asada. As far as regional specialties go, we've got it pretty good up here in Sonora, the land of juicy soft steaks with that perfect crunch. Put whatever you want on them, they're gonna be great. 

Weird fact: They've also got a calzone quesadilla with pepperoni and mushrooms.  

Location: northwest corner of West Irvington Road and South 12th Avenue

Phone: 520-272-5490

Hours: 10 a.m. to 11 p.m. Mondays through Saturdays, 1 to 10 p.m. Sundays

Payment: cash only

Contact Andi Berlin at aberlin@tucson.com. On Twitter: @AndiBerlin

You can find the Star's digital food writer Andi Berlin at a taqueria near you, taking tiny bites and furiously scribbling into an old notepad.