Patty'S Pineapple Desserts - cooking recipe

Ingredients

5 boxes instant Jell-O pistachio pudding mix
4 (20 oz.) cans crushed pineapple
1/4 c. walnuts
2 (12 oz.) containers Cool Whip
5 1/4 oz. can pineapple slices (for decoration)

Preparation

Note:
Use 1 full 12 ounce Cool Whip and half of other 12 ounce Cool Whip when mixing ingredients, saving other half for top of dessert.