Cut the Mahi Mahi into cubed, bite-sized pieces. Place the pieces in a bowl and then cover them with the squeezed lime juice. Cover and place in the fridge for about 6 hours.
You will know the fish is cooked when the skin has turned white and opaque. You can cut into one of the pieces of fish to make sure that it is this color all the way through!
When the fish is cooked, add the coconut milk and the diced vegetables. Stir, then season with salt and pepper to taste.
Spoon into bowls or coconut halves. Enjoy!