reheat the oven to 325℉.
In a bowl, add in the canned pumpkin. Then, whisk in the egg.
To the side, add in the sugar, salt, pumpkin pie spice and cornstarch. Mix that together so that the cornstarch is spread out through the other grains to prevent any possible clumping.
While mixing, add in the mix with the sugar into the pumpkin and egg you mixed together in step 2.
Lastly, mix in the evaporated milk until everything is mixed evenly. Pour the mixture into the pan. Place in the oven and bake for 40 minutes.
While baking, mix together the pecan topping. At the 40 minute mark, remove the pan and sprinkle the pecan topping across the top. Place back in oven and bake a remaining 15 minutes or until the sugars in the topping have melted down.
Remove from the oven and allow to cool completely before serving.