1 pkg. yellow cake mix
1/2 c. butter, softened
1/4 c. packed brown sugar
1 tsp. ground cinnamon
2 lg. peaches or pears (a can of fruit may also be used)
1 c. low-fat sour cream
1 egg

Heat oven to 350 degrees. Mix cake mix (dry), butter, brown sugar and cinnamon until crumbly; reserve 2/3 cup mixture. Press remaining crumbly mixture on bottom of ungreased 13 x 9 x 2 inch pan. Peel and thinly slice fruit and arrange slices on mixture in pan. Beat sour cream and egg until blended; spread over fruit. Sprinkle with reserved crumbs. Bake 35 to 40 minutes or until topping is set; cool. Cover and refrigerate any remaining dessert.