Seriously?
So, for the LW, meet with the in laws is only "food appreciation night"? What about them as family?
Lots of people eat in a different way for different reasons: diets, blood pressure, intolerance of the seasoning, food habits  or just pleasure for tasting certain foods. Different doesn't mean wrong.

Tell you what: go to your favorite grocery store, buy a family combo (chicken, fries) and open a can of corn. 
Takes less time than writing to DE! :-)