Preheat oven to 350°. Drain pears, reserving 1 cup syrup in a saucepan. Set pears aside. To the syrup, add the milk, 1 tablespoon brown sugar, butter, salt and cinnamon; heat until simmering. Chop all but 2 pear halves; stir into syrup mixture. Add oats and raisins. Heat until bubbly. Pour into a greased 1-1/2-qt. baking dish.
Bake for 20 minutes; stir. Slice remaining pear halves; arrange over top. Sprinkle with remaining 1 tablespoon brown sugar. Bake 10-15 minutes longer. Serve hot with cream or milk.