Heat oven to 350 degrees F. Mix flour and baking soda and set aside. Cream margarine, sugar, eggs, and vanilla.
Combine thoroughly with flour mixture. Grease and flour 13 x 9 pan. Pour half of the batter into a pan.
Cover with pie filling and remaining batter. Sprinkle nuts on top and bake for 45 to 50 minutes.
Suggested Handi-Foil Products:
20394 – Cook-n-Carry 13 x 9 Utility Pan w/Lid
22002 – Ultimates® Utility Pan