The trick of leaving the base attached to the quartered escarole is one we learned from Lidia Bastianich, and it makes the whole process far less fussy. Studded with plump raisins and crunchy pine nuts, the rice makes for a flavorful filling—perfect for the slightly bitter edge of the greens.
04Cook pine nuts in 1/4 cup oil in a 12-inch heavy skillet over medium heat, stirring, until pale golden, about 3 minutes. Add garlic and cook, stirring, until it begins to brown, about 1 minute. Add peppers, raisins, capers, 1/2 teaspoon pepper, and 1/4 teaspoon salt and cook, stirring occasionally, until raisins begin to plump, about 3 minutes. Remove from heat and add rice. Cool slightly, then stir in egg and 1/4 cup cheese.
05Cut off and discard base from 1 escarole quarter, then gently spread leaves to create a 4-inch-wide area. With base end nearest you, place one fourth of rice mixture in center of bottom half of escarole. Fold base of leaves over rice, then fold in sides and roll up rice in escarole. Put, seam side down, in a 2-quart flameproof shallow baking dish, then repeat with remaining escarole and rice.
06Drizzle with reserved cooking liquid and remaining tablespoon oil, then sprinkle with remaining 3/4 cup cheese. Cover tightly with foil and bake until rice is tender, about 30 minutes.
07Remove foil and turn on broiler, then broil 4 to 6 inches from heat until cheese is browned, 4 to 7 minutes.