Lettuce Tuna Tacos
1 can of tuna with corn La Sirena 4 servings 30 minutes International Ingredients 3 tablespoons olive oil 2 medium red onions, thinly sliced Salt 1 teaspoon chipotle powder or hot paprika 1 teaspoon dried oregano 1 tablespoon red wine vinegar 1 ripe mango—peeled, pitted and cut into 1/4-inch dice 1 medium cucumber—peeled, seeded and…