What food were you fed as a child that you didn’t know was weird until you were an adult?

My Mum used to make sandwiches for Dad and me to take to work/school made from cold leftover roast beef or pork. Cold roast is ok by itself, but the way Mum made the sandwich was kind of odd. First, she used 2 whole slices of squishy white WonderBread, then slathered tons of butter, mayo and pickle relish on each slice, topped that with raw onions and green peppers, and then finally added a thick slice of roast with plenty of fat on it. I had terrible indigestion until I learned to take 2 bites and throw the rest away.