1 (3 oz.) pkg. orange Jello
1 (3 1/4 oz.) pkg. reg. vanilla pudding
1 (3 1/4 oz.) pkg. tapioca pudding
1 can mandarin oranges
1 sm. container Cool Whip
1 tbsp. lemon juice

Mix 3 dry ingredients together. Stir in 3 cups cold water and bring to a boil in saucepan to thicken, stirring constantly; cool. Add mandarin oranges, drained, Cool Whip and lemon juice. Mix lightly and chill in refrigerator.