Preheat oven to 350 degrees. In a food processor, pulse the pecans into small pieces. Add in the flour, oats, and brown sugar and pulse more until combined.
Melt the butter and drizzle into the mixture; pulse until combined (will be like dough). Press flat onto the bottom of a 15x10 bar pan. Bake 15 minutes at 350.
While you are waiting for the crust to bake, in a stand mixer, beat the eggs for 1 minute. Then add in the pumpkin, condensed milk, spices and salt.
Mix together until completely smooth.
Once the crust is out of the oven, pour the pumpkin pie mixture over the crust.
Bake at 350 degrees 35-40 minutes or until filling is set. Remove from oven and let cool completely.
Cut into squares and serve with fresh whipped cream.
TO MAKE THE CREAM:
Whip 2 cups of heavy whipping cream until thick. Add 1 tsp. vanilla and 1/4 cup powdered sugar.