Persian Herb and Greens Frittata

Salt Fat Acid Heat, p. 306

Variations: 

• wild nettles, spinach, escarole, lettuce, arugula, beet greens, etc.
• green garlic
• walnuts or barberries
• milk, sour cream, or creme fraiche
• asparagus, spring onion, mint
• cherry tomato, feta, basil
• peppers, broccoli rabe, sausage
• chard, ricotta
• brussel sprouts, bacon
• potato, onion, parmesan
• radicchio, fontina, parsley