Apple Crisp

So I here is a yummy recipe to use up apples!I seem to always have some lurking around the fridge... I like to think this recipe is lower in fat because it doesn't use as much butter as other recipes... Apple Filling: 3 pounds apples 2 T. lemon juice 1/2 c. sugar 1 tsp. cinnamon 2 T. flour Topping: 1/2 c. walnut bits 1/2 c. flour 3/4 c. brown sugar 1 tsp. cinnamon 3 T. chilled butter 1 c. rolled oats 1 egg white Directions: Combine apple filling in 9x13 in. pan. In separate bowl, mix topping and evenly distribute over apple filling. Bake 375 for 30 minutes, or until apples are cooked through. Especially yummy when served with vanilla ice cream or cool whip!