There are a few places that offer a "Carribean" menu: Kaya, Royal Carribbean, Soho - but none offer anything resembling Miami Cuban. Not only is it unlikely to find a pastille, you won't even find garlic soup. Pittsburgh has some decent food choices, unfortunately Cuban isn't one of them.
If any of your So. Florida friends want to open a place, rents are fairly affordable and there's a market opportunity!