Spring Tacos with Wild Mushrooms, Asparagus and Cilantro Chimichurri, or, The World is Your Taco

I cherish the fact that in this world, a taco can absolutely be filled with your dreams: your spring garden finds, your yearnings and celebratory flights of fancy, and you can bet it will be just lovely. Presented on a tortilla, all manner of graciously grown things can be heaped, then lifted and folded, and…