I miss Yo-go's, which were those little yogurt covered fruit bits. I ate the fuck out of those when I was younger.
I also miss Wonder Balls, which were those chocolate balls with either tart candy or chewy pieces of candy inside.
I miss those Hershey's S'mores candy bars, too. They were one of the best candy bars ever made.
Finally, the food I miss the most is Oreo's cereal. It was the best cereal EVER. I always saved as many marshmallows as I could to eat last. I've heard that it's still available in South Korea, but it needs to be brought back here in the US.
It's all shits and giggles until someone giggles and shits.