Broccoli rabe is, frankly, bitter--usually appealingly so, but sometimes the bitterness can be overwhelming. Blanching the vegetable in boiling salted water for a few minutes before proceeding with the recipe tempers its strength. The trick, used here, can be applied to almost any dish.
Prosecco, a sparkling wine from Italy's Lombardy region, makes an unexpected accompaniment to this frittata. The wine has a crisp and almost neutral taste, making it very versatile with food. Drink it from a tumbler, as the Italians do.