In a bowl, combine the fish, tomatoes, cucumber, jalapeño, onion, cilantro, Chef Merito® Fish Seasoning, and Chef Merito® Lime Juice. Cover and refrigerate for 30 to 60 minutes to blend the flavors together.
Cut the avocados in half lengthwise, remove the pit, and carefully scoop each half from the peel using a large spoon.
Scoop a little extra from each avocado center to make more space for the ceviche.
Remove the ceviche from the refrigerator. You can add the removed avocado to the ceviche mixture.
Top each avocado half with the ceviche, piling it on high.