Ingredients:
1 pound russet baking potatoes, peeled and sliced 1/4-inch thick (2 medium) parboiled
or 1 pound Yukon Golds, parboiled
1/2 cup olive oil
Salt and freshly ground black pepper
1 onion, thinly sliced
2 or 3 ounces diced cured ham or cooked chorizo (optional)
3 or 4 piquillo peppers or 1 large roasted red bell pepper, cut into dice, 1/2 cup (optional)
6 eggs, lightly beaten
Chopped flat leaf parsley