Light easy and refreshing, this is a very simple recipe that is just waiting for your creative additions, such as cilantro, chiles, or your favorite seafood spices.
Cut the filets into 1″ (2.5cm) cubes. Place in a glass bowl, and add the onions. Combine the lime and passion fruit juice in a separate mixing bowl. Pour the juices over the fish. Salt lightly with sea salt, and allow to marinate in the refrigerator for 20-30 minutes. Serve immediately with crispy onions on the side for garnish.
Longer marinating is not recommended, as the texture of the fish will become rubbery and dense.