I don't know if this recipe is 'renal friendly' but it sure is yummy! Its probably better for you instead of pumpkin pie because there is less pumpkin in the mousse. The dairy (high K and phosphorous) in the whipped cream is questionable, too. Regardless, this is one of my favorite recipes and it was given to me by a friend a few years ago.

Pumpkin Mousse

1 small pack vanilla or butterscotch instant pudding
2 cups milk
1 16-oz. can pumpkin (not pumpkin pie filling)
1 teaspoon pumpkin pie spice
1 teaspoon cinnamon
1 8-oz. container of Cool Whip

Make the pudding with the milk according to package directions. Add the pumpkin, pumpkin pie spice, and cinnamon. Mix well and fold in the Cool Whip. Makes about 8 1-cup servings.

Variation (this is what I did)

If you cut the milk down to 1 cup and don't fold in the Cool Whip, the consistency comes out more like pumpkin pie filling. Top the mixture with the Cool Whip instead, and it's just like eating a pumpkin pie without the crust!!!