Combine dry cake mix, eggs, pie filling, lemon juice and chopped nuts. Blend at low speed of mixer and mix according to package directions.
Spread batter in greased 13x9-inch pan. Combine topping ingredients and sprinkle over cake mixture. Bake at 350 degrees for 45 to 50 minutes.
Note: If desired, mix some powdered sugar and water together. Drizzle over top when cooled. Other pie fillings may be used: apricot, raisin, cherry etc.