I've had a few meals like this myself ...
A sea turtle ate an eel. What happened inside the turtle is one for the medical book
In September, veterinarians at the Turtle Hospital performed a three-hour procedure to remove a goldspotted eel from a critically ill turtle rescued off the Keys by the Coast Guard.
Initially, X-ray images had led the vets to believe the mass was a severely infected turtle shell gland. They soon discovered that the eel had fought back while inside the turtle.