Preheat oven to 400 degrees Fahrenheit.

Drain mandarin oranges, reserving 1/3 cup of syrup and 2/3 cup of the orange sections.

Dice the remaining orange sections.

In a large bowl, combine 2 cups of biscuit mix, 2 tablespoons of brown sugar, and 1/2 teaspoon of grated orange peel.

In a separate bowl, combine beaten egg, lowfat milk, and the reserved orange syrup.

Add the wet ingredients to the dry ingredients, along with raisins and diced orange sections.

Stir until just moistened.

Pour the batter into a greased 9-inch round pan.

In a small bowl, combine 1/4 cup of biscuit mix, 1/4 cup of brown sugar, and 1/4 teaspoon of cinnamon.

Cut in 2 tablespoons of butter until the mixture resembles coarse crumbs.

Sprinkle the crumb topping over the batter.

Slice pear halves into thirds.

Arrange pear slices and reserved orange sections on top of the crumb topping.

Bake in the preheated oven for 25 minutes, or until a toothpick inserted into the center comes out clean.