Holiday Apple and Cranberry casserole

This makes a really good side dish to any holiday meal.

3 cups apples unpeeled and diced - use hard or tart apples
2 c cranberries
1 c sugar
1 c quick cooking oats uncooked
1 c chopped pecans
1/2 c packed brown sugar
butter

Place the apples,cranberries and sugar in the bottom of a 13x9 well buttered casserole dish. Mix together the oats,pecans, and brown sugar. Sprinkle over the top of the fruit. Dot the entire top with butter and bake at 325 for 1 hr