Delicious with a big scoop of Brennan's Vanilla Ice Cream or sweetened whipped cream. SweetTangos are also perfect for this recipe.
Preheat oven to 350F.
Peel, core and cut the pears and apples into large chunks. Place the fruit in a large bowl and add the zests, juices, flour, cinnamon, and nutmeg, Pour into an 9 x 12 x 2-inch oval baking dish.
For the topping, combine all the ingredients in the bowl of an electric mixer fitted with the paddle attachment. Mix on low speed for 1 minute, unit the mixture is large crumbles. Sprinkle evenly over the fruit, covering the fruit completely.
Place the baking dish on a sheet pan and bake for 50 minutes to 1 hour, until the top is brown and the fruit is bubbly. Serve warm.