While there appears to be a huge variety of Orange Delight salads out there, I have yet to run across one made exactly the way we make it in our home. My mom received the recipe from a co-worker probably 40+ years ago. Even after a heavy meal, this is a really refreshing dessert. I hope you enjoy it as much as we do!
Bring water to a boil, add Jell-O, stirring until clear. Remove from heat. Add frozen orange juice concentrate and stir until melted. Stir in mandarin oranges and pineapple. Pour into an 11 x 7 dish and refrigerate overnight or until the jello mixture has completely set.
Mix pudding with milk until it starts to set up. Be sure to use only 1 cup of milk, as listed in the ingredients. You don't want to make actual pudding. Fold in Cool Whip and spread over top of jello mixture.
Put mandarin orange slices on top for color. Add crushed pecans for added texture, color, etc.