Preparation Preheat oven to 350°F. Toss endives with oil and salt and pepper to taste in a 13- by 9-inch shallow baking dish and arrange, packed, in 1 layer. Bake, covered with foil, in middle of oven until tender, 30 to 40 minutes. Sprinkle evenly with walnuts and cheese and bake, uncovered, 10 minutes.
Preparation Preheat oven to 350°F. Toss endives with oil and salt and pepper to taste in a 13- by 9-inch shallow baking dish and arrange, packed, in 1 layer. Bake, covered with foil, in middle of oven until tender, 30 to 40 minutes. Sprinkle evenly with walnuts and cheese and bake, uncovered, 10 minutes.