I'm looking for an episode of a crime show where someone accidentally ate a human eyeball. There was a cooking show and the people had to guess what the mystery ingredient in the dish was. One woman took a scoop (brother thinks of soup) and ate an eyeball, then realized the eyeball had a contact on it and was human. I googled around, but the only thing that came up was Bones 9x10 and it's not that. It was likely something like Castle or CSI and in the past 5 or so years.
Thanks!
ETA: This is CSI 14x4 "Last Supper." Thanks to
aheadsuretospin for finding it!