When provolone is young, the cheese is fine and soft, best used as a table cheese. After about a year, it becomes drier and pungent, acquiring a strong, concentrated flavor that is reminiscent of Parmigiano but much sharper. The sautéed greens bring a slightly bitter but mellow flavor that tempers the provolone. Gemelli, which means "twins" in Italian, are intertwined twists of pasta. They are a little different and because of that bring something extra to this salad. Most supermarkets have them, but if yours doesn't, use fusilli.