Preheat the oven to 400 degrees F.
Peel, core, and thickly slice the pears. Toss them with the 2 tablespoons sugar and the cranberries and turn them into a deep, buttered 2-quart baking dish. The fruit should be at least 2 1/2-inches deep in the pan; add more fruit, if necessary.
For the topping, in a bowl, stir together the flour, oats, sugars, cinnamon, nutmeg, and salt. Drizzle in the melted butter tossing the ingredients with a fork to blend. Be careful not to over mix because you want a loose crumbly mixture, not a bound-together ball of topping. Sprinkle the topping over the pears.
Bake for 30 minutes, until pears are tender and topping is browned. Serve warm with heavy cream or ice cream.