Preheat a large skillet; preheat the broiler. Position a rack 6 inches from the heat. Brush the pitas on both sides with the 2 tablespoons of oil. Cook in the skillet over high heat until browned, 3 minutes. In a bowl, mash the beans with the red pepper, rosemary and prosciutto; spread on the pitas. Top with the almonds and cheese and transfer the skillet to the broiler. Broil for 2 minutes, until the cheese is melted and the pitas are golden. Drizzle with oil, cut into wedges and serve.