Many people, including myself, are now seeing Google showing image thumbnails in the core web search results for searches on food related items. Google was testing this a few months ago and even before that, but now I personally see it and many folks on Twitter are seeing it.
Here is a photo of one of many examples:
It also works for [greek pistachio], [pesto sauce], [avocado salad], [barbecue ribs] and on and on.
Makes you hungry looking at these search results, don't they?
Again, many are seeing this now and I personally can replicate all of these.
Forum discussion at Twitter.