Combine the first 11 ingredients in a bowl. Mix well.
Horizontally trim the thick end of the collard green stem so it lays flat. Spoon the tuna mixture in the center of the green. Fold the sides of the leaf in, then wrap the leaf over itself.
Cut the wrap in half and enjoy!
Notes
Allow the collard leaf to come to room temperature or soak in warm water to make it more pliable before wrapping.