Preheat oven to 375°. Lightly spray a 12-inch oven-safe skillet* with nonstick cooking spray. Set aside.
Crisp Mixture
Combine the oats, flour, brown sugar, and pumpkin spice together. Add in the cubed butter and use your hands or a fork to combine. You want the butter to be no larger than pea-sized.
Spread 4 cups of crisp mixture over the bottom and up the sides of the prepared skillet and press flat. Set the remaining crisp mixture aside.
Pumpkin Mixture
In a large bowl, whisk together the eggs and sugar until combined.
Add pumpkin, cream, vanilla, pumpkin pie spice, and kosher salt. Whisk ingredients together until smooth.
Pour the pumpkin mixture on top of the layer of crisp in the skillet.
Sprinkle the remaining crisp mixture over top of the pumpkin.
Bake uncovered at 375°F for 35-45 minutes, or until golden brown.
Serve (warm or cold) with whipped cream or ice cream.
Video
Notes
*If you do not have a skillet you can use a 9x13 pan.