Rabbi,
I was wondering that the raw chopped tomato/onion/cucumber (AKA israeli salad) that is done in a non-kosher establishment and selling in a well known retail store, like Smith’s or Traders Joe’s could be used for eating it raw or cooking.
I would think they are fine since the facility that produces it only chops these vegetables and is clean.
Thank you!
Max Namer 
Michael Varon
Yes. Fine.
Exactly as you explained