3 grouper with plantains and Recipes

olive oil-flavored cooking spray, underripe plantain, salt, divided, grouper fillets (about 1/2 inch thick ), fresh lime juice, minced fresh cilantro, bottled green salsa, reduced-fat sour cream, chopped cilantro (optional)

fresh grouper or pink snapper, skinned and cut in half lengthwise, then cut into small dice, cooked shrimp, shelled, deveined and halved, fresh lime juice, fresh orange juice, chopped fresh cilantro, plus leaves for garnish, cold-smoked grape tomatoes , recipe follows, green onions, green and pale green part only, thinly sliced, serrano chiles , finely diced depending on how spicy you like, ripe mango, peeled, halved, pitted and finely diced, kosher salt and freshly ground black pepper, extra-virgin olive oil, plus more for serving, pickled red onions, recipe follows, for garnish, lime zest, for garnish, crisp plantain chips, for garnish, grape tomatoes, canola oil, kosher salt and freshly ground black pepper, for seasoning, red wine vinegar, sugar, mustard seeds, kosher salt, red onion, halved and thinly sliced