Okay, maybe I've been missing out on the wonderfulness of breakfast burritos for years (since I don't think I've ever had one), but *damn* this is good.
A full-size burrito (more than I can or should eat for breakfast) with potatoes, salsa, sour cream and a choice of eggs with ham or eggs with chorizo.
Remembering Cyrus's praise of EOdA's chorizo burritos I chose the chorizo. By the time I got it to the office (I stopped in on my way to Fruitvale BART) chorizo grease had started to soak through one end (this is a good thing, IMHO). The first bite was a symphony of flavors, including something smoky (chipotles in the chorizo, maybe?). And yet, I can taste all the ingredients.
Best thing I've eaten in weeks, worth every penny of the seemingly steep $4.50.
El Ojo de Agua taco truck
corner of Fruitvale and E. 12th (kitty corner from the new Fruitvale station parking structure)
A new-ish sandwich board gives the hours as 6 am to 12 noon (which I read as midnight), later on the weekends.