do i have a legitmate case if i found something in my food

the biggest question in cases like this are "what are the damages?"  Typically proving damages in a case where something foreign is found in food, whether in a packaged product at home or in an eating establishment, is difficult.  Unless the object causes injury like a broken tooth, cut mouth, or some sort of illness due to the ingestion, then you end up arguing that you have suffered a mental injury from finding something foregin in your food.  Granted its weird, dangerous, and sometimes really gross, but proving a compensable injury based on finding something in your food is very hard.  I've also had people ask to use it as some sort of leverage against a company to basically extort a settlement out of them, i.e. "pay me some money or I'll go to the media."  I personally do not think that is ever a sound foundation to any case.  Best of luck.