Chop the Lionfish into small chunks, making sure that they are evenly sized so they cook evenly.
Chop all veggies and set aside. Juice your limes, combine with vinegar.
Add the fish and all veggies except the avocado to the lime juice mixture.
Let marinate for at least 20 minutes or until the fish is opaque.
Season with salt and pepper to taste. Toss with avocado.
Serve with plantain or yucca chips for a nice appetizer or light meal when visiting Florida!