Combine the flour, sugar, eggs, oil, baking soda, cinnamon and vanilla.
Mix together 3 minutes.
Fold in pie filling.
Lightly grease and flour a 9"x13" cake pan. Spread batter in bottom of pan.
Preheat oven to 325. Bake approximately 30-40 minutes. Cake is done when the top springs back when touched or toothpick inserted comes out clean. Cool.