3 grilled tacos with pickled onions and Recipes

pickled onions, salsa roja, halibut fillets, extra-virgin olive oil, kosher salt, freshly ground black pepper, corn or flour tortillas

honey, tamarind concentrate, fresh lime juice, roasted garlic, stemmed dried guajillo chiles , soaked in boiling water for 30 minutes, kosher salt and freshly ground black pepper, magret duck breast halves, about 8 oz each, trimmed of excess fat, corn tortillas, warmed , for serving, pineapple relish , recipe follows, pickled red onions , recipe follows, fresh cilantro leaves , for serving, golden pineapple, peeled , cut into 1-inch-thick slices, canola oil, kosher salt and freshly ground black pepper, green onions (green and pale green parts), thinly sliced, serrano chiles, minced , with or without seeds, juice of 1 lime, canola oil, chopped fresh cilantro, red onion, peeled, halved and cut into 1/8-inch-thick slices, dried mexican oregano, fresh lime juice, distilled white vinegar, sugar, kosher salt, combine the onions and oregano in a medium bowl.