I found a no bake pumpkin pie....don't know if it's the one? From cooks.com
NO BAKE PUMPKIN PIE FILLING
2 ½ c. cooked pumpkin
2 c. milk
1 ½ c. sugar
4 tbsp cornstarch
2 eggs
1/2 tsp. salt
1/2 tsp. cloves
1/2 tsp. ginger
1 1/2 tsp. cinnamon
1/4 tsp. nutmeg
1 10" baked pie shell
Combine all ingredients in heady duty pan, consistently stirring. Bring to a boil over medium heat until thickened.
Pour into pre-cooked pie crust and let cool before refrigerating.