In a large bowl, mix ... Cool Whip. Add Jell-O mixture; stir. Drain fruit cocktail and pineapple. Add to other ingredients. Add marshmallows; fold. Cover and chill.
Mix Jello according to package. Stir in marshmallows. Chill until set. Mix ... fairly smooth. Drain fruit and fold into Jello mixture. Fold in whipping cream and walnuts.
Dissolve Jell-O in 1 cup of ... in half. Drain fruit and fold into partially set ... juices and chopped marshmallows. Cook, stirring, until thick ... fruit mixture. Keep refrigerated.
Put fruit cocktail on bottom of casserole ... cocktail (2 cups). Jell the other half partially in ... mixture. Top with marshmallows (either miniature or cut into ... until ready to serve.