Combine all ingredients (mango, red bell pepper, red onion, jalapeño, lime zest, lime juice, cilantro and salt) in a medium mixing bowl. Stir gently to combine. Taste and add more salt if needed.
2 large ripe mangoes, ½ cup diced red bell pepper, ¼ cup finely diced red onion, ½ jalapeño, juice of one lime, ¼ cup (loosely packed) finely chopped fresh cilantro, ⅛ teaspoon fine sea salt