The Taco Wagon, crouching in the parking lot of El Mercado, a Mexican grocery in Lafayette, commands eye-rollingly long waits, but it's worth missing whatever commitment you've got lined up — school, court, hell, even your nuptials — to first profess your love for the breakfast burritos. They're delivered through a sliding glass window, behind which resides a couple with a no-nonsense sense of purpose: He takes your money; she creates Mexican magic. Her breakfast burritos, blazing hot green-chile-intensive packages bursting with scrambled eggs, nubs of spicy chorizo and slightly charred potatoes, are assembled by callused hands that take the morning ritual more seriously than most people take their marriage. The Taco Wagon takes its salsas seriously, too, offering two housemade creations: one green, the other red, both of which are worthy of their own ode to greatness.