Source: https://dailydishrecipes.com/two-ingredient-lemon-bars/
1 PKG Angel Food Cake (Just Add Water Kind)
1 (21 oz) Can Lemon Pie Filling
1 oz Lemon Juice
Powered Sugar, Optional
Combine all ingredients and mix well until no lumps.
Transfer to a sprayed lasagna pan
Bake in 350F oven for 30 minutes or until toothpick comes out clean
Dust with powered sugar if desired.