Lunch counters like this, squeezed along a back wall in a little grocery, abound in Little Havana. A lot of them serve up some pretty good meals. Some aren't so great. But the food at Nuevo Siglo is always the best Cuban cooking around. Nothing fancy, just right. You would expect, then, a just-right Cuban sandwich. And you would get it. They don't try to make a gourmet delicacy, maybe slip in too much lean ham or try a fancy cheese. No. It's just a basic Cuban sandwich, the kind you can't improve upon.